言い分 (いいぶん) — one's say, complaint, argument

言いい分ぶん one's say

Frequency #6528 Frequency rank among common Japanese words. Lower number = more common. Grade 2 Japanese school grade level in which this kanji is taught. Grade 1 is first year of elementary school. 3 characters 湯桶読み yutō-yomi 湯桶読み (yutō-yomi) — Kun'yomi first, on'yomi second. Named after 湯桶 (hot water bucket). noun Part of speech (JMdict: n)

iibun

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. いいぶん[0] heiban 平板

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