A

B

BYOP
Bring Your Own Pen/Pencil. An acronym often used by cache owners to communicate to other geocachers that you will need to bring your writing utensil in order to sign the cache logbook.

C

D

DNF
Did not find - Used when a geocacher searched for a particualr geocache, but did not find it.

E

F

FTF
First to find - used by the first person to locate the cache and sign the log

G

GPS
Global Positioning System

H

I

ICT
Ivy Covered Tree - used in the description on where a cache may be hidden

J

K

L

M

N

O

P

Q

R

S

SL
Aan acronym for "Signed Log", used when the participant visited the cache and signed its logbook. This acronym can be combined with TNLN (took nothing, left nothing") to form the super-acronym "TNLNSL".

T

TFTC
"Thanks For The Cache". This is often used at the end of logs to thank the cache owner.

TFTH
"Thanks For The Hunt" or "Thanks For The Hike" or "Thanks For the Hide". It shares the same purpose as TFTC.

TNLN
An acronym for "Took Nothing, Left Nothing", used when a finder of a cache does not trade any items in the cache. Just "TN" or "LN" can be used individually as well.

U

V

W

X

Y

Z