Couple vs. Both

Difference Between Couple and Both
Couplenoun
Two partners in a romantic or sexual relationship.
Bothdeterminer
Each of the two; one and the other; referring to two individuals or items.
Both children are such dolls.Couplenoun
Two of the same kind connected or considered together.
Bothpronoun
Each of the two, or of the two kinds.
"Did you want this one or that one?" — "Give me both."They were both here.Couplenoun
(informal) A small number.
Bothconjunction
Including both of (used with and).
Both you and I are students.Couplenoun
One of the pairs of plates of two metals which compose a voltaic battery, called a voltaic couple or galvanic couple.
Bothconjunction
(obsolete) Including all of (used with and).
Couplenoun
(physics) Two forces that are equal in magnitude but opposite in direction (and acting along parallel lines), thus creating the turning effect of a torque or moment.
Bothadjective
(used with count nouns) two considered together; the two;
both girls are prettyCouplenoun
(architecture) A couple-close.
Couplenoun
(obsolete) That which joins or links two things together; a bond or tie; a coupler.
Coupleadjective
Two or (a) small number of.
Coupledeterminer
Two or a few, a small number of.
Coupleverb
(transitive) To join (two things) together, or (one thing) to (another).
Now the conductor will couple the train cars.I've coupled our system to theirs.Coupleverb
To join in wedlock; to marry.
Coupleverb
(intransitive) To join in sexual intercourse; to copulate.
Couplenoun
a small indefinite number;
he's coming for a couple of daysCouplenoun
a pair of people who live together;
a married couple from ChicagoCouplenoun
a pair who associate with one another;
the engaged couplean inseparable twosomeCouplenoun
two items of the same kind
Couplenoun
something joined by two equal and opposite forces that act along parallel lines
Coupleverb
bring two objects, ideas, or people together;
This fact is coupled to the other oneMatchmaker, can you match my daughter with a nice young man?The student was paired with a partner for collaboration on the projectCoupleverb
link together;
can we couple these proposals?Coupleverb
form a pair or pairs;
The two old friends paired offCoupleverb
make love;
Birds mate in the Spring