Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
heads-up | Yes | Yes | No | No |
watchful | No | Yes | No | No |
heads-up (noun) | watchful (noun) |
---|---|
a warning message |
heads-up (adjective) | watchful (adjective) |
---|---|
fully alert and watchful | engaged in or accustomed to close observation |
experiencing or accompanied by sleeplessness | |
carefully observant or attentive; on the lookout for possible danger |