Adhere vs Comply vs Conform vs Follow vs Obey

When to use each in English, with meaning, register, and examples.

Adhere

FormalTop 3,000 (common)C1verb

Comply

Top 5,000 (fairly common)C1verb

Conform

Top 2,000 (common)B1

Follow

Top 1,000 (very common)A1verb

Obey

Top 1,000 (very common)B2verb
Most formal: Adhere
 AdhereComplyConformFollowObey
Pronunciation🇬🇧 /["/ədˈhɪə(r)/","/ədˈhɪəz/","/ədˈhɪəd/","/ədˈhɪərɪŋ/"]/🇺🇸 /["/ədˈhɪr/","/ədˈhɪrz/","/ədˈhɪrd/","/ədˈhɪrɪŋ/"]/🇬🇧 /["/kəmˈplaɪ/","/kəmˈplaɪz/","/kəmˈplaɪd/","/kəmˈplaɪɪŋ/"]/🇺🇸 /["/kəmˈplaɪ/","/kəmˈplaɪz/","/kəmˈplaɪd/","/kəmˈplaɪɪŋ/"]/🇬🇧 //kənˈfɔːm//🇺🇸 //kənˈfɔrm//🇬🇧 /["/ˈfɒləʊ/","/ˈfɒləʊz/","/ˈfɒləʊd/","/ˈfɒləʊɪŋ/"]/🇺🇸 /["/ˈfɑːləʊ/","/ˈfɑːləʊz/","/ˈfɑːləʊd/","/ˈfɑːləʊɪŋ/"]/🇬🇧 /["/əˈbeɪ/","/əˈbeɪz/","/əˈbeɪd/","/əˈbeɪɪŋ/"]/🇺🇸 /["/əˈbeɪ/","/əˈbeɪz/","/əˈbeɪd/","/əˈbeɪɪŋ/"]/
MeaningTo stick to something or follow it closely.To follow rules or requests.to act in the same way as others or follow rulesTo go after someone or something or do what they do.To do what someone tells you to do.
ExampleOnce in the bloodstream, the bacteria adhere to the surface of the red cells.They refused to comply with the UN resolution.Students are expected to conform to the school's dress code.I will follow you to the store.In order to maintain order, everyone must obey the rules.
RegisterFormalNeutralNeutralNeutralNeutral
How commonTop 3,000 (common)Top 5,000 (fairly common)Top 2,000 (common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelC1C1B1A1B2
Part of speechverbverbverbverb
Collocationsclosely, firmly, rigidly, tofully, reluctantly, happily, fail to, refuse to, withconform to expectations, conform to rules, conform to standards, conform with guidelines, conform to social normsclosely, reluctantly, dutifully, beckon somebody to, beckon to somebody to, being followed, follow close behind (somebody), follow right behind (somebody), closely, quickly, shortly, (be) followed by something, follow in the wake of something, closely, quickly, shortly, (be) followed by something, follow in the wake of something, carefully, to the letter, dutifully, faithfully, blindly, slavishly, be expected to, be likely to, follow in somebody’s footsteps, follow in the tradition of somebody/​something, follow suit, not necessarily, logically, naturally, (on) from, not quite, be easy to, be difficult to, be hard toimmediately, instantly, quickly, have to, must, refuse to, be only obeying orders, a duty to obey, an obligation to obey
Antonymsdetach, separate, disobeydisobey, ignore, floutdeviate, dissent, disobeylead, precede, guidedisobey, ignore
Common mistakesConfused with 'adhere to' vs 'stick to' — they are not interchangeable., Using 'adhere' without a clear object — it needs to specify what is being adhered to., Assuming 'adhere' can only refer to physical sticking — it can also refer to following rules.Using 'comply' without the preposition 'with'., Confusing 'comply' with 'compromise'., Misusing the tense, such as saying 'complyed'.Confused with 'inform' vs 'conform', Incorrectly using 'conform' without 'to', Using 'conform' in overly casual contextsConfusing 'follow' with 'lead' — they have opposite meanings., Using 'follow' without an object (e.g., 'I will follow' should specify who or what)., Mistakenly using 'follows' in the past tense instead of 'followed'.Confused with 'obeyed' in past tense usage., Using 'obey' without an object, which is incorrect., Mixing up 'obey' with 'comply' - they are similar but not interchangeable.
Usage notesUsed in formal contexts, often in legal or technical language. It's appropriate when discussing rules, guidelines, or sticky substances, but less common in casual conversation.Used in formal contexts, such as legal settings or official instructions. Less common in casual conversations. Avoid using in situations where agreement is more appropriate.Use 'conform' in contexts involving social behavior or rules. Avoid in informal settings.Use 'follow' when discussing tracking someone physically or conceptually (like ideas or trends). For social media, 'follow' often describes subscribing to someone's updates. Avoid using it in overly formal contexts.Use 'obey' in contexts involving rules, laws, or authority figures. It's suitable for both formal and casual situations, but avoid using it with someone you know well unless discussing serious issues.

Frequently asked questions: Adhere vs Comply vs Conform vs Follow vs Obey

What's the difference between Adhere, Comply, Conform, Follow, and Obey?

Adhere: To stick to something or follow it closely. Comply: To follow rules or requests. Conform: to act in the same way as others or follow rules Follow: To go after someone or something or do what they do. Obey: To do what someone tells you to do.

Which is more formal: Adhere, Comply, Conform, Follow, and Obey?

Adhere is the most formal of these.

Are Adhere, Comply, Conform, Follow, and Obey the same CEFR level?

Adhere: C1, Comply: C1, Conform: B1, Follow: A1, Obey: B2 on the CEFR scale.

Can you show an example of each?

Adhere: Once in the bloodstream, the bacteria adhere to the surface of the red cells. Comply: They refused to comply with the UN resolution. Conform: Students are expected to conform to the school's dress code. Follow: I will follow you to the store. Obey: In order to maintain order, everyone must obey the rules.

Can I use Adhere, Comply, Conform, Follow, and Obey interchangeably?

Not always. Adhere, Comply, Conform, Follow, and Obey are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons