| Readings | On-reading | きゅう |
| Kun-reading | すう | |
| Meaning | to suck / to inhale | |
| Radical | 口 | |
| Stroke count | ６ | |
| JLPT Level | N3 | |
Stroke order of 「吸」
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Vocabulary contains 「吸」
| Word | Meaning |
| 吸う（すう） | to smoke / to suck |
| 呼吸（こきゅう） | breath |
| 吸収（きゅうしゅう） | absorption |
