verb

heighten

to intensify, to increase, to enhance

The suspense heightens with each scene.

The suspense heightens with each scene.

We need to heighten security at the airport.

We need to heighten security at the airport.

((sth.)) to make (sth.) higher or more intense. The new policy will heighten tensions.

Synonyms: increase, intensify, enhance; Antonyms: decrease, lessen, reduce

From the adjective 'high' plus the verb-forming suffix '-en', literally meaning 'to make high'.

Think of making something 'higher' in intensity, amount, or degree, like heightening tension.

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