Yes, dove is a Scrabble word!

Verb

1. Drop steeply

2. Plunge into water

3. Swim under water

Noun

1. Any of numerous small pigeons

2. Someone who prefers negotiations to armed conflict in the conduct of foreign relations

3. A constellation in the southern hemisphere near Puppis and Caelum

4. Flesh of a pigeon suitable for roasting or braising; flesh of a dove (young squab) may be broiled

5. An emblem of peace