1.  conjugation(n = noun.state) colligation, conjunction, junction - the state of being joined together; Array
is a kind of unification, union
has particulars: anastomosis, inosculation, synapse

2.  conjugation(n = noun.linkdef) Array - the inflection of verbs; Array
is a kind of inflection, inflexion
Derived form verb conjugate₂

3.  conjugation(n = noun.group) Array - the complete set of inflected forms of a verb; Array
is a kind of set
Derived form verb conjugate₂

4.  conjugation(n = noun.group) Array - a class of verbs having the same inflectional forms; Array
is a kind of category, class, family
Derived form verb conjugate₂

5.  conjugation(n = noun.act) coupling, mating, pairing, sexual union, union - the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring"
is a kind of sex, sex activity, sexual activity, sexual practice
has particulars: assortative mating, disassortative mating, cross, crossbreeding, crossing, hybridisation, hybridization, hybridizing, interbreeding, inbreeding, service, servicing
Derived form verb conjugate₃

6.  conjugation(n = noun.act) jointure, unification, union, uniting - the act of making or becoming a single unit; "the union of opposing factions"; "he looked forward to the unification of his family for the holidays"
is a kind of combination, combining, compounding
has particulars: coalescence, coalescency, coalition, concretion, conglutination, reunification, reunion, tribalisation, tribalization, umbrella

1.  the act of uniting or combining; union; assemblage. [1913 Webster]
"Mixtures and conjugations of atoms." [1913 Webster]

2.  Two things conjoined; a pair; a couple. [1913 Webster]
"The sixth conjugations or pair of nerves." [1913 Webster]

3.  The act of conjugating a verb or giving in order its various parts and inflections. [1913 Webster]

4.  A kind of sexual union; -- applied to a blending of the contents of two or more cells or individuals in some plants and lower animals, by which new spores or germs are developed. [1913 Webster]

conjugation, n.
1 Gram. a system of verbal inflection.
2 a the act or an instance of conjugating. b an instance of this.
3 Biol. the fusion of two gametes in reproduction.

Derivative:
conjugational adj.

Etymology:
L conjugatio (as conjugate)

N  grammar, accidence, syntax, praxis, punctuation, parts of speech, jussive, syllabication, inflection, case, declension, conjugation, us et norma loquendi, Lindley Murray, correct style, philology.

N  junction, joining, joinder, union connection, conjunction, conjugation, annexion, annexation, annexment, astriction, attachment, compagination, vincture, ligation, alligation, accouplement, marriage infibulation, inosculation, symphysis, anastomosis, confluence, communication, concatenation, meeting, reunion, assemblage, coition, copulation, sex, sexual congress, sexual conjunction, sexual intercourse, love-making, joint, joining, juncture, pivot, hinge, articulation, commissure, seam, gore, gusset, suture, stitch, link, miter mortise, closeness, tightness coherence, combination, annexationist, joined, joint, conjoint, conjunct, corporate, compact, hand in hand, firm, fast, close, tight, taut, taught, secure, set, intervolved, inseparable, indissoluble, insecable, severable, jointly, in conjunction with, fast, firmly intimately, tria juncta in uno.

N  duality, dualism, duplicity, biplicity, biformity, polarity, two, deuce, couple, duet, brace, pair, cheeks, twins, Castor and Pollux, gemini, Siamese twins, fellows, yoke, conjugation, dispermy, doublets, dyad, span, two, twin, dual, dualistic, double, binary, binomial, twin, biparous, dyadic, conduplicate, duplex, biduous, binate, diphyletic, dispermic, unijugate, tete-a-tete, coupled, conjugate, both, both the one and the other.

N  conversion, reduction, transmutation, resolution, assimilation, evolution, sea change, change of state, assumption, naturalization, transportation, development, developing, conversion of currency, exchange of currency, exchange rate, bureau de change, chemistry, alchemy, progress, growth, lapse, flux, passage, transit, transition, transmigration, shifting, phase, conjugation, convertibility, crucible, alembic, caldron, retort, convert, pervert, renegade, apostate, converted into, convertible, resolvable into, transitional, naturalized, gradually, &c (slowly) 275 in transitu.