(w)

(sì) to seem; to appear; to resemble; similar; -like; pseudo-

似乎 (w)

(sìhū) apparently; to seem; to appear; as if; seemingly

似懂非懂 (w)

(sìdǒngfēidǒng) to seem to understand, but not to understand (idiom)

似是而非 (w)

(sìshìérfēi) apparently right but actually wrong; specious (idiom)

似曾相识 (w)

(sìcéngxiāngshí) déjà vu (the experience of seeing exactly the same situation a second time); seemingly familiar; apparently already acquainted

似核 (w)

(sìhé) nucleoid (of prokaryotic cell)

似水年华 (w)

(sìshuǐniánhuá) fleeting years (idiom)

似的 (w)

(shìde) seems as if; rather like

似笑非笑 (w)

(sìxiàofēixiào) like a smile yet not a smile (idiom)

似雪 (w)

(sìxuě) snowy

似鸟恐龙 (w)

(sìniǎokǒnglóng) ornithischian; bird-like dinosaur