dissimulate
Definition
To hide one's true feelings or intentions under a false appearance; to disguise.
বাংলা মিথ্যা আবরণের নিচে আসল অনুভূতি বা উদ্দেশ্য লুকানো; গোপন করা।
Example
"She had to dissimulate her disappointment when she didn't get the job."