Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb freshen_up

2 senses of freshen up

Sense 1
refurbish, renovate, freshen up -- (make brighter and prettier; "we refurbished the guest wing"; "My wife wants us to renovate")
       => regenerate, renew -- (reestablish on a new, usually improved, basis or make new or like new; "We renewed our friendship after a hiatus of twenty years"; "They renewed their membership")

Sense 2
freshen, refresh, refreshen, freshen up -- (become or make oneself fresh again; "She freshened up after the tennis game")
       => change -- (undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night")