Abbreviations Frequently Encountered

(shortened forms of spoken words or written symbols, or phrases, used chiefly in writing to represent the complete forms)

ab init., ab initio
From the beginning.
abbr.
abbreviated, abbreviation
abr.
abridged, abridgment
acc.
accusative (grammatical case that is the direct object of a verb or the object of certain prepositions)
act.
active
1. Being in physical motion; such as, active fish in the aquarium.
2. Functioning or capable of functioning.
3. In grammar, idicating that the subject of the sentence is performing or causing the action expressed by the verb.

Referring to a verb form or voice; used with verbs; such as, run, speak, and move: "I run, You run, He, She, It runs."

ad inf., ad infinitum
to infinity (endless)
ad init., ad initium
at the beginning
ad int., ad interim
in the meantime
ad lib., ad libitum
at will

Literally meaning is "at pleasure". This expression is popularly used as a noun phrase or modifier in English in the form "ad lib" to express absence of planning; for example, "His worst jokes were carefully planned ad libs."

ad loc., ad locum
at the place
adj.
adjective
bibl., bibliotheca
library
cf., confer
compare
con., contra
against
e.g., exempli gratia
for examplle

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