JMdict: 1093920

ノック

1. [n,vs,vt] knock; knocking
2. [n,vs,vt] fungo hitting; hitting balls for fielding practice
3. [n,vs,vt] tap; click (e.g. of a retractable pen or mechanical pencil)

Words often seen with this one: (experimental feature)

サブ (27), ドア (24), くらい (24), 部屋 (14), ぐらい (13), トイレ (11), 時 (10)