Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Verb
S: (v) conserve, husband, economize, economise (use cautiously and frugally) "I try to economize my spare time"; "conserve your energy for the ascent to the summit"
S: (v) save, preserve (to keep up and reserve for personal or special use) "She saved the old family photographs in a drawer"
S: (v) keep, hold on (retain possession of) "Can I keep my old stuffed animals?"; "She kept her maiden name after she married"
S: (v) have, have got, hold (have or possess, either in a concrete or an abstract sense) "She has $1,000 in the bank"; "He has got two beautiful daughters"; "She holds a Master's degree from Harvard"
W: (v) waste [Opposed to: conserve] (spend thoughtlessly; throw away) "He wasted his inheritance on his insincere friends"; "You squandered the opportunity to get and advanced degree"