biannual
occurring or payable twice each year
biennial
occurring every second year
binoculars
an optical instrument designed for simultaneous use by both eyes
constant
uninterrupted in time and indefinitely long continuing
dual
consisting of or involving two parts or components usually in pairs
duo
two items of the same kind
duplex
a house with two units sharing a common wall
equilateral
a figure whose sides are all equal
equivalent
being essentially equal to something
histogram
a bar chart representing a frequency distribution; heights of the bars represent observed frequencies
hypotenuse
the side of a right triangle opposite the right angle
monocle
lens for correcting defective vision in one eye; held in place by facial muscles
monogram
a graphic symbol consisting of 2 or more letters combined (usually your initials); printed on stationery or embroidered on clothing
Monopoly
a board game in which players try to gain a monopoly on real estate as pieces advance around the board according to the throw of a die
monorail
a railway having a single track
monotonous
sounded or spoken in a tone unvarying in pitch
monotony
constancy of tone or pitch or inflection
patrilineal
based on or tracing descent through the male line
patriarchal
characteristic of a form of social organization in which the male is the family head and title is traced through the male line
probability
a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
solid
not soft or yielding to pressure
solubility
the quality of being soluble and easily dissolved in liquid
theocracy
a political unit governed by a deity (or by officials thought to be divinely guided)
unique
the single one of its kind
universe
everything that exists anywhere
university
a large and diverse institution of higher learning created to educate for life and for a profession and to grant degrees
