Retainer

Noun

 * 1) A dependent or follower of someone of rank.
 * 2) A paid servant, especially one who has been employed for many years.
 * 3) Any thing or person that retains.
 * 4) A fee one pays to reserve the other's time for services.
 * : A device that holds teeth in position after orthodontic treatment.

Adjectives for Retainer
taciturn; gorgeous; confidential; faithful; marshaled.

Verbs for Retainer
beckon—; chastise—; despatch—; discharge ——; flout—; order—; recommend—; reprove —; suffer—; —accompanies; —aids; —arranges; —attends; —betrays; —confronts; —eases; —endures; —refers; —serves.

Thesaurus
account, adherent, allowance, appendage, assessment, bill, blackmail, blood money, dangler, dependent, emolument, fee, follower, footing, hanger-on, heeler, henchman, hush money, initiation fee, man, mileage, reckoning, retaining fee, satellite, scot, servant, shadow, stipend, tagtail, tribute, ward heeler