
1) Cave 2) Cave, poetically 3) Cave, to poets 4) Cavern 5) Cavern, to a poet 6) Cavern, to the poet 7) Grotto 8) Mountain of Serbia 9) Poetic cave 10) Small cave 11) Small cave, poetically 12) Small cavern 13) Small man-made cave
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https://www.crosswordclues.com/clue/grot

1) Grotto
Found on
https://www.crosswordclues.com/clue/grot
[mountain] Grot (Serbian Cyrillic: Грот) is a mountain in southern Serbia, near the city of Vranje. Its highest peak has an elevation of 1,327 meters above sea level. Like the nearby Oblik, Grot is an ancient inactive volcano. ...
Found on
http://en.wikipedia.org/wiki/Grot_(mountain)

• (n.) Alt. of Grote • (n.) A grotto.
Found on
http://thinkexist.com/dictionary/meaning/grot/

Gretchin, servant, slave.
Found on
http://wh40k.lexicanum.com/wiki/List_of_Terms
Grot (grŏt)
noun [ French
grotte , Italian
grotta . See
Grotto .] A grotto. [ Poetic]
Milton. Found on
http://www.encyclo.co.uk/webster/G/61

Grot was the codename for a KGB secret arms dump of mines, explosives and detonators hidden in a dead letter-box near Salzburg, Austria in 1963. The dump was intended for future use in sabotage operations in the event of a war with the west. In 1964 road repairs covered the dump, and the KGB never attempted to recover the equipment.
Found on
http://www.probertencyclopaedia.com/browse/FG.HTM

Grot is a cultivated variety of potato.
Found on
http://www.probertencyclopaedia.com/browse/QG.HTM

Grot is British slang for rubbish; dirt.
Found on
http://www.probertencyclopaedia.com/browse/ZG.HTM
No exact match found.