masking

a masking of fear with macho posturing.

the number plate had been blacked out with masking tape.

If the hair graying is inreversible, hair colorant is the main choice for the masking of hair color change.

He is good at masking his real character behind an assumed manner.

buried the point of the article in a mass of details. Tocloak is to conceal something, such as a thought, a plan, or an intention, by masking or disguising it:

It is taking hychroperoxides as masking agents, alumnium in titanium alloys was meascred with aluminon ammonium aurintri-carboxylate.