WordNet

the trait of lacking restraint or control; reckless freedom from inhibition or worry; "she danced with abandon" (同)wantonness, unconstraint
forsake, leave behind; "We abandoned the old car in the empty parking lot"
leave someone who needs or counts on you; leave in the lurch; "The mother deserted her children" (同)forsake, desolate, desert
give up with the intent of never claiming again; "Abandon your life to God"; "She gave up her children to her ex-husband when she moved to Tahiti"; "We gave the drowning victim up for dead" (同)give_up
stop maintaining or insisting on; of ideas or claims; "He abandoned the thought of asking for her hand in marriage"; "Both sides have to give up some claims in these negotiations" (同)give_up
the act of giving something up (同)forsaking, desertion
the voluntary surrender of property (or a right to property) without attempting to reclaim it or give it away

PrepTutorEJDIC

〈車・船・家など〉'を'『捨て去る』,見捨てて去る(leave behind) / 〈希望・計画など〉'を'『断念する』;〈習慣など〉'を'『やめる』 / 勝手気まま,放縦
〈習慣・信仰・権利など〉‘を'捨てる,やめる / (…に)〈財産・権利など〉‘を'譲る《+『名』+『to』+『名』》 / 〈握っている物〉‘を'放す,ゆるめる
見捨てること,遺棄 / 自暴自棄