| advance guard | |
| —n | |
| 1. | a military unit sent ahead of a main body to find gaps in enemy defences, clear away minor opposition, and prevent unexpected contact |
| 2. | a temporary military detachment sent ahead of a force to prepare for a landing or other operation, esp by making reconnaissance |
| a chattering or flighty, light-headed person. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |