Synonyms and related words :
bend, bending the knee, bob, bow, bowing and scraping, crouch, curtsy, dipping the colors, duck, homage, inclination, kneeling, kowtow, making a leg, nod, obeisance, obsequiousness, presenting arms, prostration, reverence, salaam, salutation, salute, scrape, servility, squat, standing at attention, stoop, submission, submissiveness, supination