основы meaning in English

fundamental [fundamentals]▼(a leading or primary principle, rule, law, or article)
noun
[UK: ˌfʌn.də.ˈmen.tl̩] [US: ˌfʌn.də.ˈmen.tl̩]

rudiment [rudiments]▼(fundamental principle or skill)
noun
[UK: ˈruː.dɪ.mənt] [US: ˈruː.də.mənt]

establish [established, establishing, establishes]▼(To found; to institute)
verb
[UK: ɪ.ˈstæ.blɪʃ] [US: ə.ˈstæ.blɪʃ]

found [founded, founding, founds]▼(to start an organization)
verb
[UK: faʊnd] [US: ˈfaʊnd]

justify [justified, justifying, justifies]▼(give a good, acceptable reason for something)
verb
[UK: ˈdʒʌ.stɪ.faɪ] [US: ˈdʒʌ.stə.ˌfaɪ]