夜通し (よどおし, yodooshi) Japanese meaning: all night | KotomoraThe rain continued throughout the night.
Written forms
夜通しUsage84%
Standard kanji spelling; high frequency in news and written Japanese.
夜どおしUsage16%
Mixed kanji-kana spelling; less common but still encountered.
Etymology
Compound of 夜 (yo, 'night') + 通し (tōshi, 'through, continuously'), from the verb 通す (tōsu, 'to let pass through').
