From BiblePortal Wikipedia

Smith's Bible Dictionary [1]

Beth-tap'puah. (House Of Apples). One of the towns of Judah, in the mountainous district, and near Hebron.  Joshua 15:53. Compare  1 Chronicles 2:43. Here, it has actually been discovered by Robinson, under the modern name of Teffuh , five miles west of Hebron, on a ridge of high table-land.

Hastings' Dictionary of the Bible [2]

Beth-Tappuah (‘place of apples,’   Joshua 15:53 ). A town of Judah in the Hebron mountains (see Tappuah in   1 Chronicles 2:43 ). Now the village Taffuh , west of Hebron.

Holman Bible Dictionary [3]

 Joshua 15:53

Easton's Bible Dictionary [4]

 Joshua 15:53

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [5]

(Heb. Beyth- Tappu'ach, תִּפּוּחִ בֵּיתאּ , Apple-House, i.e. orchard; Sept. Βηθθαπφουέ v.r. Βαιθαχού ), a town of Judah, in the mountainous district, and near Hebron ( Joshua 15:53; comp.  1 Chronicles 2:43), where it has been discovered by Robinson ( Researches, 2, 428) under the modern name of Teffuh, 1.25 hour, about five miles, west of Hebron, on a ridge of high table-land. The terraces of the ancient cultivation still remain in use; and though the "apples" have disappeared, yet olive-groves and vineyards, with fields of grain, surround the place on every side (Schwarz, Palest. p. 105). (See Apple).

The simple name of Tappuah was borne by another town of Judah, which lay in the rich lowland of the Shefela (Joshua 14:34). (See Tappuah). Also by one on the border between Manasseh and Ephraim ( Joshua 16:8). (See En-Tappuah).

International Standard Bible Encyclopedia [6]

beth - tap´ū̇ - a ( בּית־תּפוּח , bēth - tappūaḥ  ; Βεθθαπφουέ , Beththapphoué , "place of apples" (see however Apple )); A town in the hill country of Judah ( Joshua 15:53 ), probably near Hebron (el Tappuah,  1 Chronicles 2:43 ), possibly the same as Tephon (1 Macc 9:50). The village of Tuffūḥ , 3 1/2 miles Northwest of Hebron, is the probable site; it stands on the edge of a high ridge, surrounded by very fruitful gardens; an ancient highroad runs through the village, and there are many old cisterns and caves. (See PEF , III, 310, 379, Sh Xxi . )