Looking for math terms that begin with the letter “t”? Here’s a handy list of mathematical words starting with “t” to boost your vocabulary.

**Tack-**Short course in navigation or geometry.**Tangent-**A line that touches a curve at one point.**Tangency-**The condition of touching a curve or surface.**Tangible-**Quantifiable and measurable.**Tautology-**Statement true in every situation, often repeated.**Tesselation-**Tiling a plane with shapes without gaps.**Tessera-**Individual tile in a tessellation.**Theorem-**Proven statement in mathematics.**Theorize-**Formulate explanations or theories.**Thrice-**Three times in multiples.**Threshold-**Starting point or minimum limit.**Tiling-**Covering a plane with geometric shapes.**Time-**Dimension measuring event duration.**Torus-**Surface of a doughnut-shaped object.**Total-**Sum of all parts.**Transform-**Change in form or function.**Translation-**Shifting a shape without rotation.**Transpose-**Interchange positions especially in matrices.**Trapezoid-**Quadrilateral with one pair of parallel sides.**Trapezium-**Quadrilateral with no parallel sides in some regions.**Traversal-**Path through a graph or data structure.**Treble-**Triple; multiply by three.**Triad-**Group of three related elements.**Triangle-**Polygon with three edges and vertices.**Trigonometry-**Study of triangles.**Triangular-**Pertaining to the shape of a triangle.**Triangulate-**Measure or divide in triangles.**Trinary-**Relating to the number three.**Triple-**Threefold increase or structure.**Triplicate-**Make three copies.**Triplet-**Group or set of three.**Tritetraflexagon-**Paper model that can flex and fold.**Trisection-**Division into three equal parts.**Trivial-**Simple or elementary in mathematics.**Trillion-**Number equal to 10^12 (one million million).**Trigon-**Another term for a triangle.**Tuple-**Ordered list or sequence of elements.**Two-**Integer between one and three; 2.**Twine-**To twist together or intertwine.**Tetrahedron-**Solid with four triangular faces.**Torso-**Central part of a geometric figure.**Tensor-**Mathematical object represented by arrays.**Toroidal-**Doughnut-shaped geometric form.**Table-**Arrangement of data in rows and columns.**Tabulate-**Organize data into tables.**Tensile-**Capable of being stretched.**Tangible-**Measurable, definite, or clearly expressed.**Twiddle-**Small adjustment, particularly in algorithms.**Tab-**Small projection or attachment for marking or holding.**Target-**Desired value or reference point.**Time-**Series – Data sequence indexed by time.**Tolerance-**Acceptable variation limit in measurements.**Tabulation-**Act of arranging data systematically.**Tally-**Count or total.**Tonic-**Pertaining to tone, especially in waveform analysis.**Trim-**Remove the outer parts.**Tip-**Final or small part of something.**Truncate-**Shorten by cutting off.**Trial-**Test or experiment iteration.**Trajectory-**Path followed by a moving object.**Track-**Pathway or direction.**Trace-**Outline or follow along a line or path.**Transfinite-**Beyond finite; related to infinite quantities.**Transitivity-**Property in mathematics relating elements.**Tariff-**Schedule of rates or fees, often used statistically.**Tangency-**Touching at a single point, without crossing.**Triangle Inequality-**Property of triangle side lengths.**Trial Division-**Method for finding factors by division.**Trivial Group-**Simplest mathematical group.**Twin Primes-**Pair of prime numbers differing by two.**Tropic-**Relating to circular patterns or orbits.**Test-**Procedure to establish quality or performance.**Tangential Velocity-**Speed at which an object moves along a tangent.**Terminal Point-**Endpoint in a geometric or algebraic context.**Topology-**Study of geometric properties preserved under transformation.**Translation Vector-**Vector determining translation.**Telemetry-**Remote data measurement and transmission.**Taxonomy-**Classification system.**Torsion-**Twisting force or angle.**Tensile Strength-**Maximum stress a material can withstand.