Term: gratuity: a relatively small amount of money given for services rendered (as by a waiter)
Candidate hypernym: outgo: money paid out; an amount spent → 1
Candidate hypernym: volatility: the trait of being unpredictably irresolute → 0
Candidate hypernym: polyergus: Amazon ants → 0
Candidate hypernym: test: a hard outer covering as of some amoebas and sea urchins → 0
Candidate hypernym: scrim: a firm open-weave fabric used for a curtain in the theater → 0
Candidate hypernym: rainbow cactus: a stout cylindrical cactus of the southwest United States and adjacent Mexico → 0
Candidate hypernym: cliff brake: any of several small lithophytic ferns of tropical and warm temperate regions → 0
Candidate hypernym: dissection: a minute and critical analysis → 0
Candidate hypernym: battlement: a rampart built around the top of a castle with regular gaps for firing arrows or guns → 0
Candidate hypernym: school bus: a bus used to transport children to or from school → 0
Candidate hypernym: plastic wrap: wrapping consisting of a very thin transparent sheet of plastic → 0