אֲרֻבָּה (ʼărubbâhar-oob-baw'noun|femininelattice)
[Heb] אֲרֻבָּה ETCBC: אֲרֻבָּה‎ (subs|hole) OSHL: a.fm.ag TWOT: 156d GK: H748 Greek: θυρίς, ὀπή
Derivation: feminine participle passive of אָרַב (as if for lurking);
Strong's: a lattice; (by implication) a window, dovecot (because of the pigeon-holes), chimney (with its apertures for smoke), sluice (with openings for water)
KJV: chimney, window.