The trivial name "alkali metals" comes from the fact that the hydroxides of the group 1 elements are all strong alkalis when dissolved in water.
ðə tɹˈɪvɪəl nˈeɪm "ˈælkəlˌaɪ mˈɛɾəlz" kˈʌmz fɹʌmðə fˈækt ðætðə haɪdɹˈɑːksaɪdz ʌvðə ɡɹˈuːp wˈʌn ˈɛlɪmənts ɑːɹ ˈɔːl stɹˈɔŋ ˈælkəlˌaɪz wɛn dɪsˈɑːlvd ɪn wˈɔːɾɚ.