Conceal vs Mask

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

Conceal

FormalTop 5,000 (fairly common)C1verb

Mask

Top 1,000 (very common)C1noun
Most formal: ConcealMost common: Mask
 ConcealMask
Pronunciation🇬🇧 //kənˈsiːl//🇺🇸 //kənˈsil//🇬🇧 /["/mɑːsk/"]/🇺🇸 /["/mæsk/"]/
MeaningTo hide something so that it cannot be seen or found.A cover for the face that hides it or protects it.
ExampleHe tried to conceal his feelings from everyone.She wore a mask to the costume party to conceal her identity.
RegisterFormalNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
CEFR levelC1C1
Part of speechverbnoun
Collocationsconceal from others, conceal the truth, conceal evidenceface, facial, full-face, have on, wear, don, conceal something, cover something, hide something, behind a/​the mask, beneath a/​the mask, in a/​the mask, face, facial, full-face, have on, wear, don, conceal something, cover something, hide something, behind a/​the mask, beneath a/​the mask, in a/​the mask, blank, cold, emotionless, slip, behind a/​the mask, mask for, a mask of indifference
Antonymsreveal, expose, disclosereveal, unmask
Common mistakesConfused with 'reveal' - opposite meaning., Using 'concel' - misspelling., Confusing with 'disguise' - different meaning.Confused with 'masking tape' - remember that 'mask' can refer to face coverings., Using 'masked' only in a figurative sense - it can also refer to physical coverings., Thinking 'mask' only refers to Halloween or costume masks - it also refers to medical masks.
Usage notesUse 'conceal' in formal contexts, such as writing or serious discussions. Avoid casual conversation.Use 'mask' when talking about face coverings for protection or disguise. It's appropriate in both casual and formal contexts, but avoid it in discussions about personal identity unless referring to metaphorical masking.

Frequently asked questions: Conceal vs Mask

What's the difference between Conceal and Mask?

Conceal: To hide something so that it cannot be seen or found. Mask: A cover for the face that hides it or protects it.

Which is more formal: Conceal and Mask?

Conceal is the most formal of these.

Which is more common: Conceal and Mask?

Mask is the most common in everyday English.

Are Conceal and Mask the same CEFR level?

Conceal: C1, Mask: C1 on the CEFR scale.

Can I use Conceal and Mask interchangeably?

Not always. Conceal and Mask 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