stiffens is a form of:

Stiffen



Related forms — noun: stiffener — verb: stiffen
verbpast tense: stiffened ; past participle: stiffened ; present participle: stiffening ;
1.
(INTRANSITIVE) ~ (something) (up) (with something) (to make or become stiff) ធ្វើអោយរឹង, ពង្រឹង (ដោយទល់ទ្រ), ឡើងរឹង, មិនចុះចាញ់, បន្ទន់, ធ្វើអោយខាប់, ចងសម្ពន្ធ, បង្រួបបង្រួម, លើករស (ធ្វើអោយមានឱជារស)
Example: Mother uses starch to stiffen the collars and cuffs, The pudding stiffens when it cools.joints stiffen ទៅជារមង បត់ឡើង, jellies stiffen ឡើងរឹង, winds stiffen រឹតតែខ្លាំងឡើង, competitions stiffen រឹតតែពិបាកឡើង
2.
(TRANSITIVE) (To make or become stiff or stiffer) stiffen jelly ធ្វើឱ្យរឹង, stiffen joints ធ្វើឱ្យរឹងពិបាកបត់ចុះបត់ឡើង, stiffen competition ធ្វើឱ្យកាន់តែពិបាកឡើង
ENGLISH MEANING
verbpast tense: stiffened ; past participle: stiffened ; present participle: stiffening ;
1.
(TRANSITIVE) To make stiff; to make less pliant or flexible; as, to stiffen cloth with starch.
2.
(TRANSITIVE) To inspissate; to make more thick or viscous; as, to stiffen paste.
3.
(TRANSITIVE) To make torpid; to benumb.
4.
(INTRANSITIVE) To become stiff or stiffer, in any sense of the adjective.