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Wiktionary
leave behind

vb. 1 (&lit leave behind English) 2 (context transitive idiomatic English) To abandon. 3 (context transitive idiomatic English) To forget about. 4 (context transitive idiomatic English) To not live longer than; to be survive by. 5 (context transitive idiomatic English) To leave (a trace of something). 6 (context transitive idiomatic English) To outdo; to progress faster than (someone or something else). 7 (context transitive English) To pass.

WordNet
leave behind
  1. v. depart and not take along; "He left behind all his possessions when he moved to Europe"

  2. be survived by after one's death; "He left six children"; "At her death, she left behind her husband and 11 cats" [syn: leave]

  3. leave unchanged or undisturbed or refrain from taking; "leave it as is"; "leave the young fawn alone"; "leave the flowers that you see in the park behind" [syn: leave, leave alone]