一枚岩
いちまいいわ monolith; large slab of rock
Why it means this
一枚 (one flat piece) + 岩 (rock) — a single slab of rock; a group perfectly united with no cracks (党内は一枚岩ではない).
Breakdown
- 一 イチ one, one radical (no.1)
- 枚 マイ sheet of..., counter for flat thin objects or sheets
- 岩 いわ boulder, rock, cliff
Each character links to its full entry — origin story, stroke order, and readings.