1 to prevent something from being seen or known about; to hide something:
He made no attempt to conceal his satisfaction.
2 to not tell somebody about something that they have the right to know about:
Do not conceal health problems from a prospective insurer.
To conceal his identity, the man's voice has been dubbed over .
He had a microphone concealed in his pocket.
The judicial and psychiatric heterogeneity might also have concealed possible deviations in working memory and\or planning present in certain subgroups.
However, skilful editing cannot quite conceal the notable lacunae within the book.
The language has an extraordinary transparency, unity and simplicity of shading; it conceals an exceedingly skilful control of detail and pacing, and a factual economy.
