Bottle up and Box up

Bottle up verb - Control and refrain from showing; of emotions, desires, impulses, or behavior.

Box up and bottle up are semantically related in hold in check topic. In some cases you can use "Box up" instead a verb "Bottle up".

Box up verb - Enclose or confine as if in a box.

Bottle up and box up are semantically related in hold back topic. You can use "Bottle up" instead a verb "Box up", if it concerns topics such as hinder.