• 規則きそく — rule; regulation
• 規定きてい — regulation; provision
• 規模きぼ — scale; scope
• 規約きやく — agreement; code
• 定規じょうぎ — ruler (measuring tool)
• 規制きせい — control; restriction
• 新規しんき — new; fresh (project, contract)

The kanji 規 combines 見 (“see”) with a component meaning “compass” — a tool for measuring and drawing. Together, they suggest the idea of setting boundaries, defining standards, and establishing rules.

新あたらしい 規則きそくが 発表はっぴょうされました。
A new rule has been announced.

会社かいしゃの 規模きぼは 年々ねんねん 拡大かくだいしています。
The scale of the company has been expanding year by year.