noun, verb, -ad⋅ed, -ad⋅ing.| 1. | a party, dance, or other festive gathering of persons wearing masks and other disguises, and often elegant, historical, or fantastic costumes. |
| 2. | a costume or disguise worn at such a gathering. |
| 3. | false outward show; façade; pretense: a hypocrite's masquerade of virtue. |
| 4. | activity, existence, etc., under false pretenses: a rich man's masquerade as a beggar. |
| 5. | to go about under false pretenses or a false character; assume the character of; give oneself out to be: to masquerade as a former Russian count. |
| 6. | to disguise oneself. |
| 7. | to take part in a masquerade. |