口 kǒu, mouth/classifier for things with mouths (people, domestic animals, cannons, well... 台 Tái/tái, [檯]/[臺]/[颱], Taiwan (abbr.)/surname Tai, (classical) you (in letters)/variant of 臺|台[tái], de... 厶 mǒu/sī, old variant of 某[mǒu], old variant of 私[sī] 讠 yán, [訁], "speech" or "words" radical in Chinese characters (Kangxi radical 149)/see also ... 诒 yí, [詒], (archaic) to present/to bequeath/variant of 貽|贻[yí]