Pron = pronoun, abbreviation of pronoun?

N = noun, short for noun?

V = verb, also refers to transitive verb and intransitive verb, abbreviation of verb?

Conj = conjunction, short for conjunction?

S = subject?

Sc = subject complement?

O = to whom?

Oc = Recipient's Supplement?

Vi = intransitive verb, short for inherent verb?

Vt = transitive verb, short for transitive verb?

Aux.v = auxiliary verb, short for auxiliary?

A = adjective, short for correction?

Ad = adverb, short for adverb?

Art = article, the abbreviation of the article?

Num = numeral, short for number?

Int = interjection, short for intersection?

U = uncountable noun, short for uncountable noun?

C = countable noun, short for countable noun?

Pl = complex number, short for complex number.