Arid

Arid-adj
1-used to describe a region in which annual rainfall is less than 10 inches
2-completely lacking in interest or excitement

Synonyms
dry
infertile
parched
barren
bone'dry
baked
scorched
humid (antonym)

Argot

Argot-n
jargon used by a particular group

Synonyms
jargon
slang
idiom
speech
dialect
patois
vernacular
idiolect

Argyle/Argyll

Argyle/Argyll-adj
knitted with a pattern of colored diamonds

n
a sock or sweater made in an argyle design

Argil

Argil-n
clay, especially potter's clay

Argent

Argent-n

1-the metal or the color sliver (archaic or literary)
2-the color white or silver on a coat of arms

Argentine

Argentine-adj
silvery in color (archaic or literary)

n
the metal silver, or any material that looks like silver

Arduous

Arduous-adj
1-requiring hard work or continuous strenuous effort
2-very difficult to traverse, endure, or overcome

Synonyms
difficult
hard
tough
laborious
grueling
demanding
strenuous