Shirk and its types

Triliteral root SH-R-K

Definition
Basically it means to stick to other, to hang on to, to become intermingled.

Quranic Concept
Shirk is a particular Quranic term have much significance in the life of human being.Anyone if, persistently carry the same state of mind till death certainly face regression,lose self respect in this life and stagnation in the eternal life after death (Ultimate manifestation of the results of deeds). He (his self) will never be promoted step by step towards infinity.According to Quran it means:

• To consider non godly things as Allah's contemporary
• To consider others also have same powers and authority as Allah has. 
• To consider man-made laws equivalent to Allah's laws.
• To accept the right of services to others where service to Allah should be acknowledged.
• To deny that everything in the universe subservient to humans.
• To deny that all humans are not equal innately and instinctively. 
• To consider anything superior to mankind other than Allah. ( its an insult to human)                

Such consideration certainly does not affect divinity of Allah but on the contrary humans fall down from the pedestal of humanness. Allah out of His fathomless mercy bestowed human being a unique highly respectable stature in the universe and does not expect his degradation by indulging in "Shirk" Therefore, Quran declare it as the greatest crime/sin which is not forgivable if carry till death.  

Shirk is greatest Zulm (31:13) 

"Zulm" means " not to put something on its rightly deserved justified place/position may be by increasing /decreasing from its actual deserving place to create imbalance (Raghib, TaJ) While (Ibn-e -Faris ) said that it also means " darkness and transgression". here in the context of shirk may be taken as to consider celestial bodies, natural manifestation and certain humans on an elevated place than they deserve is Shirk.31:13 Luqman, enlightening his son, said this to him, "O My dear son! Never associate anyone with Allah, for, assigning ‘partners’ to Him is a tremendous wrong.”(Shabbir Ahmed) 

Shirk is a lie against one's self (6:23-24)  

At that time, they will be able to employ no subterfuge and perforce will have to say “We swear by Allah that He is our Rabb and we never associated any authority with Him.” Behold! how these people will lie against themselves, and those whom they have associated with Allah will desert them. (exposition)

Allah condemned those people who contend that some other beings also wield authority and power. 34:22
Say, “Call upon those whom you imagine besides Allah! They do not have an atom’s weight of power either in the heavens or on the earth, nor have they any share in either, nor does He need any of them as a helper.” (Shabbir Ahmed)

Human being deprived of high status and invite humiliation and insult because of Shirk. (22:31)

Turn to Allah alone, associating none with Him. For whoever ascribes partners to Allah, it is as if he has fallen from the sky and the birds snatch him or the wind blows him to far-off places. (Shabbir Ahmed)  

Sectarianism is Shirk (30:31-32) 

Turn to Him alone then, and be mindful of Him, and establish the Divine System and be not of those who ascribe ‘partners’ to Him, From those who have divided their system and become sects, each group is happy with what it has.(Shabbir Ahmed) Exposition:  What is this system? 
it is a way of life prescribed by Allah. Prerequisite to achieve this system is to establish system of "Salat" (wherein everyone follows His Laws according to one’s own free will).  In this obedience and following, do not include anyone else’s laws or decisions.  This will create uniformity of thought and action amongst yourselves and, as such, all humanity will become one Ummah; thereby overcoming all the differences (2:213).  This is the very objective of Deen.Accordingly, after becoming the upholders of the principle of Tauheed, you should remain extremely careful not to indulge in 'shirk'.  You should not be amongst those who break the unity of their Deen and who instead of remaining one entity, get split into various sects.  After people split into sects, every group thinks it is on the path of truth and is therefore content with its own way.  Remember getting split into sects or factions amounts to shirk.  Never fall prey to it. (3:104; 6:160; 23:53; 42:13)

Falters, out of ignorance may be protected from ill-consequences if repents but Shirk is unforgivable crime/sin (4:48) 
Allah does not forgive that divinity be ascribed to other than Him. But He may forgive anything else, to whom He wills. Whoever associates partners with God, has thus, devised a tremendous drag on his own person. (Shabbir Ahmed) please read along 4:116, 50:26

Allah has sent no authority for Shirk (7:33)

My Rabb has declared to be Har’am (1) indecencies - in action or in thought; (2) all those things which debilitate human capabilities; (3) Unjust rebellion (4) associating other authorities with Allah; Allah has in no way sanctioned it, and (5) attributing to Allah that of which you have no knowledge.” Exposition (please read along 30:35, 22:71

To consider someone intercessor between Allah and His slaves is Shirk (13:33) 

Is there any equal to the One Who stands witness over what every person does? Yet, they ascribe partners to God. Say, “Name them! Are you informing Him of something that He does not know on earth? Or is it a mere show of words?” Nay, whatever the unbelievers contrive seems fair to them. But they get hindered from the right path. Whoever chooses to go astray according to God’s law, for him there is no guide. ( Shabbir Ahmed)

Shirk brings pessimistic view of life and helplessness.(17:22)

 Do not set up gods besides Allah. If you run man-made systems, disregarding the Permanent Values, you will face an embarrassing failure. (Shabbir Ahmed)

One who put behind the commands of Allah to acquire money and power,indulged in Shirk

Please read 18:32-38 carefully.presenting here only verse 37-38 for you perusal " His friend differed with him, “Do you disbelieve in the One Who created you from dust, and then from gametes, and then shaped you into the current human form,“As for me, Allah is my Lord and I will never accept any other god besides my Rubb.”

Shirk cause to degradedness and fall from the high pedestal of humanness.( 22:18 )

Do you not see that to Allah submits everyone in the heavens and everyone on earth? And the sun, and the moon, and the stars, and the mountains, and the trees - and all kinds of living beings that crawl on their belly, walk on two or four feet, or fly - and many of the human beings submit to Him. But there are numerous human beings who incur retribution. Whoever disgraces himself according to Allah’s law, for him, there is none that can raise him to honor. Allah has control over all things and events and He does everything according to His laws. (Shabbir Ahmed) 

Making one's uncontrollable urge/unhindered emotions, god beside Allah is Shirk. (45:23)

Have you ever noted him who makes his desires his god? Consequently, Allah lets him go astray despite his knowledge, seals up his hearing and his heart, and places a veil on his sight. Then who will lead him after he has left Allah? Will you not then remember (this admonition)? 

(Shabbir Ahmed) please read along 25:43

One's constructive deeds  will be rendered waste if indulge in Shirk (6:88) 

This is the Guidance of Allah. He guides His servants according to His laws (4:88). If they had associated others with Allah, their actions would have been vain. (Shabbir Ahmed)

Allah instill terror in the heart of him,who indulged in Shirk (3:151)

We shall cause dread in the hearts of those who defy the Divine laws since they choose masters besides Allah. For this, He has revealed no authority, and granted power to none contrary to His laws. Fire is their resting place, and miserable is the ultimate home of those who hurt their own ‘self’ by relegating the truth.(True belief removes fear and grief 2:38.) (Shabbir Ahmed) 

"Shirk" Zulm on your own self (Nafs) (2:54)   

When Moses returned, he said to his people, “O my people! You have hurt your own ‘self’ by worshiping the calf. So, turn in repentance to your Maker and kill your ego (rebellious mentality). This will be best for you in the Sight of your Maker.” Thereupon He turned toward you accepting your repentance. He is the Acceptor of repentance, the Merciful.(Shabbir Ahmed) please read along 2:92

Following political/religious leaders and their self made ideologies/ Shiriah is also Shirk (2:166) 

 Then those who were followed will renounce their followers, as soon as they see the impending doom, and all their mutual bonds will be rent asunder. (Shabbir Ahmed) 

To accept right of Governance other than Allah is Shirk (12:40) 

"Those whom you serve and obey besides Him, are but names that you have fabricated, you and your forefathers. Allah has revealed no authority for them. All ruling belongs to Allah alone. And there is no Judge but He. He has commanded that you serve none but Him. That is the Right Deen. But most people are not aware of this fact or disregard it in practice." (Shabbir Ahmed)

To accept subjugation other than Allah considering as source of strength and dignity is shirk. (19:81-82) 

And they have chosen idols in various forms besides Allah, hoping that they would be a source of strength for them...But nay,they will reject their Service, and will turn against them.(Shabbir Ahmed) 

Belief in Trinity and Allah has offspring is Shirk (4:171,5:73,21:26) 

21:26 And some say, “The Beneficent has taken to Himself a son. Glory to Him! They are but servants raised in honor. 4:171:O People of the Scripture! Do not exaggerate in your religion. Say nothing about Allah except the truth. The Messiah Jesus son of Mary was a Messenger of Allah, the fulfillment of His Word to Mary, created according to the laws of creation and given free will from the Divine Energy (like all human beings 15:29, 32:7-9, 38:72). Believe in Allah and His Messengers, and say not: “Three". Cease! It is for your own good. Allah is but One Allah. Far removed it is from His Supreme Majesty that He should have a son. Everything in the Highs and everything in the Lows belongs to Him. Allah is enough as a Trustee (of the Universe) 5:73:And certainly they disbelieve who say that Allah is one of three (in a Trinity) when there is no god whatsoever but the One Allah. Unless they desist from saying what they say, grievous suffering is bound to befall such of them who oppose the truth. ( Shabbir Ahmed) 

Tried to highlight types of Shirk and due to my ignorance I may have skipped some therefore, humbly suggest to the readers to study following verses which may bring further clarity.

35:40, 64:4,35:14,6:81-82,30:28,5:72,2:92,6:24,6:122,30:35,11:109,16;17,16:21

Note: please check the referred verses and if you find any mistake please pardon me. 

Apology  

Respected Dr. Shabbir Ahmed please accept my humble apology for following changes i have made without your prior permission:

Instead of word " GOD" used " Allah" 

Instead of word " Worship" used " Service " 

I hope you forgive.Thanks 

To be continued....