糸屋 is read as いとや (itoya) and means yarn seller.
いとや
itoya
いと
thread
いとぐち
thread end
いとめんとり
light chamfering (engineering)
いとぐちをひらく
to find a clue
いとでんわ
telephone made from two cans and a piece of string
しきゅうたい
glomerulus
しじょうたい
mitochondria
いといり
silk or paper with cotton threads
いとめ
fine line
いとづくり
thin strips of raw fish and squid
いとをとおす
to thread (e.g. a needle, beads, etc.)
いととり
silk reeling