Accordance vs Agreement vs Compliance vs Harmony

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

Accordance

FormalBeyond 10,000 (less common)C1noun

Agreement

Top 1,000 (very common)B1noun

Compliance

FormalTop 3,000 (common)C1noun

Harmony

Top 2,000 (common)C1noun
Most common: Agreement
 AccordanceAgreementComplianceHarmony
Pronunciation🇬🇧 /["/əˈkɔːdns/"]/🇺🇸 /["/əˈkɔːrdns/"]/🇬🇧 /["/əˈɡriːmənt/"]/🇺🇸 /["/əˈɡriːmənt/"]/🇬🇧 /["/kəmˈplaɪəns/"]/🇺🇸 /["/kəmˈplaɪəns/"]/🇬🇧 //ˈhɑː.məni//🇺🇸 //ˈhɑːr.mə.ni//
MeaningAgreement or being in harmony with something.A decision or understanding made by two or more people.Following rules or laws.A pleasing combination of different elements.
Examplein accordance with legal requirementsThe two countries reached an agreement to trade resources.procedures that must be followed to ensure full compliance with the lawThe choir sang in perfect harmony.
RegisterFormalNeutralFormalNeutral
How commonBeyond 10,000 (less common)Top 1,000 (very common)Top 3,000 (common)Top 2,000 (common)
CEFR levelC1B1C1C1
Part of speechnounnounnounnoun
Collocationsin accordance with the law, act in accordance, perform in accordancedraft, formal, signed, negotiate, work out, conclude, in an/​the agreement, under an/​the agreement, agreement between, breach of agreement, the terms of the agreement, absolute, complete, full, arrive at, come to, reach, by agreement, in agreement, in agreement with, absolute, complete, full, arrive at, come to, reach, by agreement, in agreement, in agreement withregulatory compliance, compliance measures, compliance officer, compliance with laws, compliance standardsmusical harmony, harmony of structure, social harmony, harmony in relationships
Antonymsdisagreement, discord, dissensiondisagreement, conflict, dissonancedefiance, violationdiscord, dissonance, conflict
Common mistakesSaying 'in accordance to' instead of 'in accordance with'., Confusing 'accordance' with 'accord', which has a different meaning., Using it in informal settings where simpler language would be better.Confused with 'agreement' as a verb; 'agree' is the correct form., Wrongly uses plural form 'agreements' in contexts that require a singular., Forgets to include 'on' after 'agreement' when talking about specific topics.Confused with 'compliant', which describes something that follows rules., Misused in casual language instead of simpler synonyms., Omitted the preposition 'with' when used.Confused with 'peace' - harmony implies cooperation and balance, while peace is the absence of conflict., Used inappropriately in contexts that require a broader term like 'balance'.
Usage notesUsed in formal contexts, especially in legal and official documents. Not commonly used in casual conversation.Used when talking about decisions made together. Appropriate in both spoken and written contexts. Avoid in very informal settings where simpler words might suffice.Used in legal or business contexts. Avoid in casual conversation; instead, use simpler terms like 'following rules'.Use 'harmony' to describe musical notes, relationships, or ideas that work well together. It can be used in both artistic and social contexts.

See it in real clips

Agreement
Harmony

Frequently asked questions: Accordance vs Agreement vs Compliance vs Harmony

What's the difference between Accordance, Agreement, Compliance, and Harmony?

Accordance: Agreement or being in harmony with something. Agreement: A decision or understanding made by two or more people. Compliance: Following rules or laws. Harmony: A pleasing combination of different elements.

Which is more common: Accordance, Agreement, Compliance, and Harmony?

Agreement is the most common in everyday English.

Are Accordance, Agreement, Compliance, and Harmony the same CEFR level?

Accordance: C1, Agreement: B1, Compliance: C1, Harmony: C1 on the CEFR scale.

What part of speech are Accordance, Agreement, Compliance, and Harmony?

Accordance: noun, Agreement: noun, Compliance: noun, Harmony: noun.

Can you show an example of each?

Accordance: in accordance with legal requirements Agreement: The two countries reached an agreement to trade resources. Compliance: procedures that must be followed to ensure full compliance with the law Harmony: The choir sang in perfect harmony.

Can I use Accordance, Agreement, Compliance, and Harmony interchangeably?

Not always. Accordance, Agreement, Compliance, and Harmony 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.