mono-
to speak only one language
monolingual
the ability to speak two languages
bilingual
a polygon with 3 sides and 3 angles
triangle
unicycle
a vehicle with one wheel
railroad consisting of one rail
monorail
a vehicle with 2 wheels
bicycle
a vehicle with 3 wheels
tricycle
one way used everywhere, in all cases
universal
one company in control of all stock or supply
monopoly
to divide into 2 equal parts
bisect
a million million
trillion
distinctive clothing worn by members of the same organization
remaining the same in all cases and at all times; unchanging in form or character
uniform
unchanging in pitch, or having one tone
monotone
occurring twice a month, or every two months
bimonthly
an athletic contest consisting of three different events, typically swimming, cycling, and long-distance running
triathlon
make or become united, uniform, or whole
unify
dull, tedious, and repetitious; lacking in variety and interest
monotonous
a pair of eyeglasses having lenses with two parts with different focal lengths
bifocals
a group of three related novels, plays, films, operas, or albums
trilogy
a mythical animal typically represented as a horse with a single straight horn projecting from its forehead
unicorn