元となった辞書の項目
リーダー
noun
a leader (one having authority) / a leader (principal article in a newspaper)
意味（1）
a leader (one having authority)
意味（2）
a leader (principal article in a newspaper)
意味（3）
a leader (a piece of material at the beginning or end of a reel or roll to allow the material to be threaded or fed onto something, as a reel of film onto a projector or a roll of paper onto a rotary printing press)
