| Main Entry: | plus-one |
| Part of Speech: | n |
| Definition: | the guest of a person invited to an event |
| Example: | I will be attending the holiday party plus-one. |
| Etymology: | 1977 |
| Usage: | also plus-one, adj. "accompanied by a guest" |
| Main Entry: | plus-one |
| Part of Speech: | n |
| Definition: | See plus-one |