瓦 (readings: が, かわら, ぐらむ; Japanese kanji) means “Tile / Gram”. 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 瓦屋根 (tiled roof).
What does 瓦 mean?