Addition

"Addition" in Japanese

付加

fuka

(act of adding)

加法

kahō

(arithmetic: process of adding)

建て増し

tatemashi

(thing added)

足し算

tashizan

(arithmetic: process of adding)

追加

tsuika

(act of adding)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.