Having a flat, level, or even surface without bumps or slopes.
この机は平らで書きやすい。
This desk is flat and easy to write on.
道は平らなので自転車でも走りやすい。
The road is level, so it's easy to ride a bicycle on it.
床を平らにするために床材を交換した。
We replaced the flooring to make the floor level.
Calm, tranquil, or composed — a state of serenity or steadiness.
母はいつも平らな表情で困ったときも冷静だ。
My mother always has a composed expression and stays calm even in trouble.
交渉中は平らな態度を保つことが重要だ。
It's important to maintain a calm attitude during negotiations.
A relaxed, comfortable sitting posture (often used in the phrase お平らに to request someone to sit comfortably).
お客様、どうぞお平らにお座りください。
Please, sit comfortably.
年配の方には足を崩してお平らに座るよう勧めた。
I encouraged the elderly person to sit comfortably with their legs relaxed.
Used as a suffix in place names to indicate a plain, plateau, or tableland (often read だいら after place names).
富士見平ら（例として）からの眺めは素晴らしい。
The view from Fujimi-daira (example name) is wonderful.
この地域は平らな土地が広がっているため農業に向いている。
This area is suitable for agriculture because flat land spreads across it.