Ternion [noun]

● Leash

● Threesome

● Trinity

● Triad

● Trine

● Triumvirate

● Triune

● Troika

● Set of three

● Trey

● Triangle

● Trilogy

● Triplet

● Triplicate

● Triptych

● Ternion

● 3

● Deuce-ace

● Iii

● Leash

● Tercet

● Ternary

● Terzetto

● Three

● Threesome

● Tierce

● Trey

● Triad

● Trine

● Trinity

● Trio

● Triplet

● Troika

● Monoid

● Binary operation

● Transfinite number

● Isotrimorphism

● Semigroup

● Quintillionth

● Tetradic

● Quaternion

● Prime factor

● Natural number

● Octette

● Geminous

● Diophantine equation

● Hermitian matrix

● Mandelbrot set

● Decadic

● Sextolet

● Hilbert space

● Transfinite

● Ordinal

● Abelian group

● Trichord

● Identity matrix

● Rational number

● Cartesian product

● Unitary matrix

● Algebraic number

● Fourling

● Diagonal matrix

● Square matrix

● Unary operation

● Ordinal number

● Modulo

● Exponential equation

● Pythagorean theorem

● Mesologarithm

● Cardinal number

● Octonary

● Singular matrix

● Polynomial

● Trimorphous

● Unit matrix

● Identity element

● Groupoid

● Dyad

● Supremum

● Quaternity

● Nomial

● Euclidean space

● Quantivalence

● Hermitian

● Coset

● Factorial

● Binomial theorem

● Logarithmic function

● Metric space

● Symmetric matrix

● Eightling

● Arithmetic

● Inner product

● Comma

● Tangent plane

● Triplicity

● Didymous

● Poset

● Geminy

● Common fraction

● Complex conjugate

● Tiercet

● Integer

● Matrix algebra

● Fivesome

● Arithmetic operation

● Open interval

● Dyadic operation

● Tuple

● Cumulant

● Vulgar fraction

● Bivector

● Sextain

● Dummy variable

● Tergeminous