サイ

ほそ.い、ほそ.る、こま.か、こま.かい

細, 糸, 田

dainty, get thin, taper, slender, narrow

"細胞(さいぼう): cell (biology)
細かい(こまかい): (1) small (2) fine; minute (3) minor; trivial (4) sensitive; attentive
詳細(しょうさい): detail; particulars
細菌(さいきん): bacillus; bacterium; germ
細工(さいく): work; craftsmanship; tactics; trick
細い(ほそい): (1) thin; slender; fine (2) unlucky (billiards slang)
心細い(こころぼそい): helpless; forlorn; hopeless; unpromising; lonely; discouraging; disheartening
亜細亜(アジア): (1) Asia (esp. ""the Far East"") (2) Asian; Asiatic
細やか(こまやか): friendly; heartfelt; tender"