Tra từ conceal - Từ điển Oxford Advanced Learner 8th

con·ceal [conceal conceals concealed concealing] BrE [kənˈsiːl] NAmE [kənˈsiːl] verb (formal)
to hide sb/sth
•~ sb/sth The paintings were concealed beneath a thick layer of plaster.
•Tim could barely conceal his disappointment.
•She sat down to conceal the fact that she was trembling.
•~ sb/sth from sb/sth For a long time his death was concealed from her.
see also ↑ill-concealed
Verb forms:

Word Origin:
Middle English: from Old French conceler, from Latin concelare, from con- ‘completely’ + celare ‘hide’.

Synonyms:
hide
conceal • cover • disguise • mask • camouflage
These words all mean to put or keep sb/sth in a place where they/it cannot be seen or found, or to keep the truth or your feelings secret.
hide • to put or keep sb/sth in a place where they/it cannot be seen or found; to keep sth secret, especially your feelings: ▪ He hid the letter in a drawer. ◇ ▪ She managed to hide her disappointment.
conceal • (formal) to hide sb/sth; to keep sth secret: ▪ The paintings were concealed beneath a thick layer of plaster. ◇ ▪ Tim could barely conceal his disappointment.
When it is being used to talk about emotions, conceal is often used in negative statements.
cover • to place sth over or in front of sth in order to hide it: ▪ She covered her face with her hands.
disguise • to hide or change the nature of sth, so that it cannot be recognized: ▪ He tried to disguise his accent.
mask • to hide a feeling, smell, fact, etc. so that it cannot be easily seen or noticed: ▪ She masked her anger with a smile.
camouflage • to hide sb/sth by making them/it look like the things around, or like sth else: ▪ The soldiers camouflaged themselves with leaves and twigs.
to hide/conceal/disguise/mask/camouflage sth behind sth
to hide/conceal sth under sth
to hide/conceal sth from sb
to hide/conceal/disguise/mask the truth/the fact that…
to hide/conceal/disguise/mask your feelings

Example Bank:
•He waited with barely concealed impatience.
•She was unable to conceal her surprise.
•The camera is small and easily concealed.
•He could not conceal his joy/disappointment.
•She could barely/scarcely/hardly conceal her delight.