やまは 山を張る Show inflections LinksSentence search for 山を張るSentence search for やまをはるKanji details for 山 and 張Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to speculate; to make an educated guess; to gamble (e.g. on getting the right questions)Idiomatic expression, See also 山を掛ける Discussions Log in to talk about this word.