ad
noun
[ ad ]
• an advertisement.
• "the latest television lager ad"
Origin:
mid 19th century: abbreviation.
ad
noun
• short for advantage.
ad-
prefix
• denoting motion or direction to.
• "advance"
Origin:
from Latin ad ‘to’; in the 16th century the use of ad- and its variants was extended to replace a- from a different origin such as Latin ab- (e.g. advance, from French avancer based on late Latin abante ‘in front’).
-ad
suffix
• (forming nouns) in collective numerals.
• "myriad"
• (forming nouns) in names of females in classical mythology.
• "dryad"
• (forming nouns) in names of poems and similar compositions.
• "Iliad"
• (forming nouns) in names of members of some taxonomic groupings.
• "bromeliad"
Origin:
from the Greek ending -as, -ad- .
-ad
suffix
• forming nouns such as ballad, salad.
Origin:
from French -ade .
AD
abbreviation
• Anno Domini (used to indicate that a date comes the specified number of years after the traditional date of Christ's birth).
A/D
abbreviation
• analogue to digital.
• "an A/D converter"
