adhere

/ədˈhɪər/ formal

Say it: ad-HEER

1. verb To act in the way required by a rule, agreement, or belief.
All participants in the study must adhere to the strict guidelines.
2. verb To stick firmly to a surface or substance.
Make sure the surface is clean and dry, or the tape will not adhere properly.
3. verb To believe in and steadfastly support a particular idea, party, or person.
She adheres to the principle that all people should be treated with respect.

📖 Seen in the wild

All members must adhere to the club's strict rules.
collected by @vocablast

✏️ adhere in a sentence

The company was fined for failing to adhere to environmental regulations.
For the project to succeed, the team must adhere to the established timeline.
The new coating is designed to adhere to almost any metallic surface.
I try to adhere to a budget, but it's difficult around the holidays.
Despite the changing times, he adhered to the old traditions of his family.
Signatories of the treaty are expected to adhere to all its clauses without exception.

🔁 Synonyms & antonyms

comply follow abide by observe uphold conform to stick to cling

comply · suggests yielding to an external request or command, rather than internal conviction.

follow · a more general and less formal term for acting in accordance with something.

abide by · stresses the acceptance of a decision or rule, especially one you might not personally like.

observe · implies upholding traditions, laws, or customs with care and respect.

Opposites: disregard, ignore, violate, flout, deviate

🌱 Where it comes from

The word 'adhere' comes directly from the Latin 'adhaerēre', which breaks down into 'ad-' (to) and 'haerēre' (to stick). Its meaning has remained remarkably consistent over centuries, starting with the literal sense of physical sticking and naturally extending to the figurative idea of 'sticking to' a rule, belief, or commitment.

🧩 How it's used

Common patterns:

adhere to the rulesadhere to a principleadhere strictly toadhere to the guidelinesadhere to a plan

'Adhere' is a formal word, particularly in its abstract senses. In casual conversation, 'stick to' is a common substitute (e.g., 'stick to the plan'). Be careful with its noun forms: 'adherence' is used for following rules or beliefs, while 'adhesion' refers to physical stickiness. Confusing the two is a common mistake.

Word family: adherence, adherent, adhesion, adhesive

💬 Quick answers

What does 'adhere' mean?

It means to stick firmly to a surface, or more commonly, to follow a rule, believe in an idea, or maintain a practice faithfully.

What is the difference between 'adhere' and 'comply'?

'Adhere' suggests a voluntary and steadfast commitment to a principle or plan. 'Comply' often implies submitting to an external command or requirement, sometimes reluctantly.

Is 'adhere' a formal word?

Yes, 'adhere' is generally a formal word, especially when used to mean following rules or beliefs. In everyday conversation, people are more likely to say 'stick to' or 'follow'.

What is the noun for 'adhere'?

There are two main nouns. 'Adherence' refers to the act of following rules or beliefs (e.g., adherence to the law). 'Adhesion' refers to the physical property of sticking to a surface (e.g., the adhesion of a bandage).

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