| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a chattering or flighty, light-headed person. |
| yt | |
| —the internet domain name for | |
| Mayotte | |
| Yt | |
| —the chemical symbol for obsolete | |
| Now: Y yttrium | |
| YT | |
| —abbreviation for | |
| Yukon Territory | |
| Y.T. Yukon Territory |