DictionaryconstrainLimit or restrict
verb

constrain

kun-STRAYN/kənˈstreɪn/

To restrict the range of permitted action.

The narrow frame and tight ties constrain the young tree's growth.

Young tree's growth is physically limited by a narrow protective frame and ties, restriction within bounds clearly shown.
Etymology

The pieces describe binding tightly together, as with fetters or chains. That physical restriction supplies the image for limiting someone's actions or forcing something within bounds.

In context

Michael Knowles11:31
laws are really powerless to constrain the actions of an organized minority of people who want to subvert them
They Just Want to Diddle Kids | Auron MacIntyre

More examples

  • Our small budget constrains our travel plans.
  • The architect was constrained by the narrow lot.
  • They avoid constraining students to a single approach.

Forms

constrain · constrains · constrained · constraining

constraint noun — A limit on available choices or actions.

Similar words

restrict
Often emphasizes explicit rules limiting access, activity, or choice.
limit
More broadly sets a maximum amount, extent, or range.
restrain
Often means holding back a person, impulse, or action.