втвърдявам meaning in English

calcify [calcified, calcifying, calcifies]▼(transitive)
verb
[UK: ˈkæl.sɪ.faɪ] [US: ˈkæl.sə.ˌfaɪ]

firm [firmed, firming, firms]▼(to make firm or strong)
verb
[UK: fɜːm] [US: ˈfɝːm]

harden [hardened, hardening, hardens]▼(to make hard(er))
verb
[UK: ˈhɑːd.n̩] [US: ˈhɑːr.dn̩]

solidify [solidified, solidifying, solidifies]▼(transitive: to make solid; convert into a solid body)
verb
[UK: sə.ˈlɪ.dɪ.faɪ] [US: sə.ˈlɪ.də.ˌfaɪ]

stiffen [stiffened, stiffening, stiffens]▼(to make stiff)
verb
[UK: ˈstɪf.n̩] [US: ˈstɪf.n̩]

toughen [toughened, toughening, toughens]▼(to make tougher)
verb
[UK: ˈtʌf.n̩] [US: ˈtʌf.n̩]

cake [caked, caking, cakes]▼(to coat with a crust)
verb
[UK: keɪk] [US: ˈkeɪk]

calcify [calcified, calcifying, calcifies]▼(intransitive)
verb
[UK: ˈkæl.sɪ.faɪ] [US: ˈkæl.sə.ˌfaɪ]

congeal [congealed, congealing, congeals]▼(to change from a liquid to solid state)
verb
[UK: kən.ˈdʒiːl] [US: kən.ˈdʒiːl]

firm [firmed, firming, firms]▼(to become firm)
verb
[UK: fɜːm] [US: ˈfɝːm]

harden [hardened, hardening, hardens]▼(to become hard)
verb
[UK: ˈhɑːd.n̩] [US: ˈhɑːr.dn̩]

indurate [indurated, indurating, indurates]▼(To harden)
verb
[UK: ˈɪn.djʊə.reɪt] [US: ˈɪn.djʊə.ˌreɪt]

set up▼(to gel or harden)
verb
[UK: set ʌp] [US: ˈset ʌp]

solidify [solidified, solidifying, solidifies]▼(intransitive: to become solid; to freeze)
verb
[UK: sə.ˈlɪ.dɪ.faɪ] [US: sə.ˈlɪ.də.ˌfaɪ]

steel [steeled, steeling, steels]▼(To harden or strengthen; to nerve or to fortify against, to brace oneself.)
verb
[UK: stiːl] [US: ˈstiːl]

stiffen [stiffened, stiffening, stiffens]▼(to become stiff)
verb
[UK: ˈstɪf.n̩] [US: ˈstɪf.n̩]

toughen [toughened, toughening, toughens]▼(to become tougher)
verb
[UK: ˈtʌf.n̩] [US: ˈtʌf.n̩]