及 (readings: きゅう, およ, および; Japanese kanji) means “Reach Out / Exert / Exercise / Cause”. It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 普及 (spread).
What does 及 mean?