A person or group that acts in an auxiliary manner. / A sailing vessel equipped with an engine. / (grammar) An auxiliary verb. / A marching band colorguard.

(grammar) A verb used to express the mood (or tense) of another verb.

(linguistics) A language intended to be used by people who do not share a common language.

(obsolete, chemistry) any atom or group which, when added to a chromophore, causes a bathochromic shift in its spectrum

(botany) A class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and behavioral processes in the plant life cycle.

A bishop who functions as another bishop's deputy, where the weight of sacramental duties is too much for a single bishop.

plural of auxiliary

(obsolete) auxiliary

(archaic) An auxiliary.

A member of a group, typically composed of volunteers, that helps support a hospital.