Defn: One who joins or promotes a coalition; one who advocates coalition.

CO-ALLY
Co`-al*ly", n.; pl. Co-allies.

Defn: A joint ally. Kent.

COAL-METER
Coal"-me`ter, n.

Defn: A licensed or official coal measurer in London. See Meter.
Simmonds.

COALMOUSE
Coal"mouse`, n. (Zoöl.)

Defn: A small species of titmouse, with a black head; the coletit.

COALPIT
Coal"pit`, n.

1. A pit where coal is dug.

2. A place where charcoal is made. [U. S.]