An auxiliary verb.
A person or group that acts in an auxiliary manner.
A marching band colorguard.
A sailing vessel equipped with an engine.
Supplementary or subsidiary.
Helping; giving assistance or support.
Held in reserve for exceptional circumstances.
Of a ship, having both sails and an engine.
Relating to an auxiliary verb.
A verb that accompanies the main verb in a clause in order to make distinctions in tense, mood, voice or aspect.