足す

• Reading: たす
• Romaji: tasu
• Kanji breakdown: 足 (soku/ta) — foot, add, sufficient
• Pronunciation: /ta.sɯ/

Meaning

To add; to supplement. Used for adding numbers together or adding more of something.

A Group 1 (godan) verb conjugated with the す row. Primarily used in arithmetic (addition) and also for adding or supplementing quantities in everyday situations, such as adding water or ingredients. The related noun is 足し算 (addition).

Examples

1. 三に五を足すと八になります。 If you add five to three, you get eight.
2. 味が薄いので、塩を少し足してください。 The flavor is weak, so please add a little salt.
3. お湯が足りないから、もう少し足しましょう。 There's not enough hot water, so let's add a bit more.

Usage Guide

Context: math, cooking, daily life

Tone: neutral

Origin & History

From the kanji 足 (foot, sufficient). The verb sense of 'adding' comes from the idea of making something sufficient or complete by supplementing it.

Cultural Context

Era: Ancient

Generation: All ages

Social background: Universal