adj.
VERBS
▪ be , keep , remain , stay
▪ become
ADVERB
▪ extremely , very
▪ especially , particularly
▪ constantly , ever
▪
The organization is ever ~ for threats to the habitats of birds.
PREPOSITION
▪ about
▪
Be extra ~ about what you eat or drink.
▪ against
▪
You need to be ~ against garden pests.
Vigilant is used with these nouns: ↑ watch