(UK, slang, archaic) An expression of surprise.

sick building syndrome

To exercise strict control over; keep in check.

Third-person singular simple present indicative form of keep a tight rein on

Very tight-fitting. / Very tight with money, very stingy.

not mentally sound; unintelligent

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

(colloquial, derogatory) One who is stingy; someone overly cautious or defensive with money.

plural of tightrope

Third-person singular simple present indicative form of tighten