reticule vs graticule

reticule and graticule both are nouns.

Word	Noun	Adjective	Verb	Adverb
reticule	Yes	No	No	No
graticule	Yes	No	No	No

As nouns, reticule and graticule are synonyms defined as:

reticule and graticule: a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument

Other synonyms of reticule include reticle.

reticule (noun)	graticule (noun)
a woman's drawstring handbag; usually made of net or beading or brocade; used in 18th and 19th centuries	a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument