also: へいぎん
noun, noun or participle which takes 'suru', transitive verb
The common modern sense: a statistical average or mean. As 平均する, it can mean to average a set of values.
クラスの平均は七十二点だった。
The class average was 72 points.
三日間の売上
Averaging the sales over three days, it comes to 100,000 yen per day.
noun, noun or participle which takes 'suru', intransitive verb
Less common in modern everyday Japanese than バランス or 均衡. Used for physical or abstract balance, including set-like expressions such as 平均を保つ or 平均を失う, and intransitive 平均する for being balanced.
強い風で体の平均を失った。
I lost my balance in the strong wind.
左右の重さが平均しているので、台は傾かない。
The weights on the left and right are balanced, so the stand does not tilt.