twelfth month (esp. of the lunar calendar); December
師走に入り、街は慌ただしくなった。
As December began, the town became bustling.
師走の忙しさに、店主は嬉しい悲鳴を上げた。
Amidst the December rush, the shop owner let out a cry of joy.
師走は何かと忙しい。
December is busy with one thing or another.