Dict: strongs - burg
Strongs:
H2864 @ חתר châthar khaw-thar' A primitive root; to force a {passage} as by burglary; figuratively with oars: - dig ({through}) row.
H4290 @ מחתּרת machtereth makh-teh'-reth From H2864; a burglary; figuratively unexpected examination: - breaking {up} secret search.
G1358 @ διορύσσω diorussō dee-or-oos'-so From G1223 and G3736; to penetrate burglariously: - break through (up).
G4444 @ πύργος purgos poor'-gos Apparently a primary word (burgh); a tower or castle: - tower.