holdrule

noun
UK /ˈhəʊldruːl/
US /ˈhoʊldruːl/

A holdrule is a special rule that keeps something in place.

The teacher made a holdrule so the class would stay quiet in the hallway.


OTHER MEANINGS

2. A firm decision that you must not change.

Her holdrule was to always finish homework before playing.

3. A small bar or clamp that holds things together.

He used a holdrule to keep the papers from sliding.

4. A promise to keep something safe.

The club had a holdrule about protecting the garden.