役立つ (やくだつ) — to be useful, to be helpful

役やく立だつ to be useful

Frequency #1798 Frequency rank among common Japanese words. Lower number = more common. Grade 3 Japanese school grade level in which this kanji is taught. Grade 1 is first year of elementary school. 3 characters 重箱読み jūbako-yomi 重箱読み (jūbako-yomi) — On'yomi first, kun'yomi second. Named after 重箱 (layered box). godan verb (-tsu) · intransitive Part of speech (JMdict: v5t, vi)

yakudatsu

Pitch高低アクセント — Tokyo-dialect pitch accent. The number is the drop position: 0 = heiban (no drop), 1 = atamadaka (drops after 1st mora), N = drops after Nth mora. The line above each mora marks high pitch; below, low. やくだつ[3] nakadaka 中高

Synth audio is approximate — the diagram is the canonical reference.