strengthening

v. make strong, fortify, reinforce, toughen; become strong

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Noun
1. becoming stronger
(antonym) weakening
(hypernym) transformation, transmutation, shift
(derivation) strengthen
2. the act of increasing the strength of something
(antonym) weakening
(hypernym) increase, step-up
(hyponym) concentration
(derivation) strengthen, beef up, fortify

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Adjective
1. invigorating physically or mentally
(synonym) fortifying
(similar) invigorating

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Verb
1. make strong or stronger; "This exercise will strengthen your upper body"; "strenghten the relations between the two countries"
(synonym) beef up, fortify
(antonym) weaken
(hypernym) change, alter, modify
(hyponym) vitalize, vitalise
(derivation) strengthener, reinforcement
2. gain strength; "His body strengthened"
(antonym) weaken
(hypernym) change
(hyponym) consolidate
(derivation) strengthening
3. give a healthy elasticity to; "Let's tone our muscles"
(synonym) tone, tone up
(hypernym) exercise, work out

v. zesílit (se); posílit (se)

Czas. wzmacniać; wzmacniać się

(p. pr. & vb. n.)
of Strengthen
  

(a.)
That strengthens; giving or increasing strength.