1Having 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.
2Calm, tranquil, or composed — a state of serenity or steadiness.
彼はいつも心を平らに保ち、めったに慌てない。
He always keeps his heart calm and rarely panics.
動揺したときこそ、気持ちを平らにすることが大切だ。
Especially when upset, it's important to keep your feelings calm.
3A 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.
4Used as a suffix in place names to indicate a plain, plateau, or tableland (often read だいら after place names).
松本平は長野県のほぼ中央に広がる盆地状の平地だ。
Matsumoto-daira is a basin-shaped plain that spreads across the center of Nagano Prefecture.
地図には「田代平」という、湿原の広がる台地の名前が記されている。
The map shows the name Tashiro-daira, a plateau covered with wetlands.