Synonyms of the word

constringe

• v. to constrict, to tighten.

constrict

• v. To narrow, especially by applying pressure.

narrow

• adj. Having a small width; not wide; having opposite edges or sides that are close, especially by comparison…
• adj. Of little extent; very limited; circumscribed.
• adj. (figuratively) Restrictive; without flexibility or latitude.
• adj. Contracted; of limited scope; bigoted.
• adj. Having a small margin or degree.
• adj. (dated) Limited as to means; straitened.
• adj. Parsimonious; niggardly; covetous; selfish.
• adj. Scrutinizing in detail; close; accurate; exact.
• adj. (phonetics) Formed (as a vowel) by a close position of some part of the tongue in relation to the palate;…
• v. (transitive) To reduce in width or extent; to contract.
• v. (intransitive) To get narrower.
• v. (knitting) To contract the size of, as a stocking, by taking two stitches into one.
• n. (chiefly in the plural) A narrow passage, especially a contracted part of a stream, lake, or sea; a strait…

tighten

• v. (transitive) To make tighter.
• v. (intransitive) To become tighter.
• v. (economics) To make money harder to borrow or obtain.
• v. (economics) To raise short-term interest rates.