kənˈjəŋ(k)shən noun
( -s )
Etymology: Middle English conjunctioun, from Middle French conjonction, from Latin conjunction-, conjunctio, from conjunctus + -ion-, -io -ion
1. : the act of conjoining or state of being conjoined : union , association , combination
things not normally seen in conjunction
the view that cause is constant conjunction — E.H.Madden
2. : an instance of conjoining or coming together : union , association
quartering … was the normal way of indicting a conjunction of lordships — A.R.Wagner
3. : occurrence together : concurrence especially of events or routes
from the state line route 17 proceeds in conjunction with route 6 for a few miles
4. obsolete : sexual union : union in wedlock
5.
a. : the apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac
b. : a configuration in which two celestial bodies have their least apparent separation
a conjunction of Mars and Jupiter
— compare opposition ; see configuration illustration
6. : a linguistic form (as an uninflected word) that joins together words or word groups such as sentences (as but in “He tried. But he failed”), clauses (as if in “I'll go if you will”), phrases (as and in “over the river and through the woods”), words (as or in “first or last”), or a word and a phrase (as and in “my brother and I”)
7. logic
a. : a statement that is true only if both its components are true — called also joint assertion
b. : the binary connective used in logic
c. : the logical operation of forming a conjunction