Back-of-the-book; denoting those stamps in a catalogue that are not used for the payment of regular postage fees, and are displayed separately in the catalogue after that listing; the division between these two groups varies with the publisher.
Vibrator (device designed to stimulate a woman's genitals).
Of two sets, having a one-to-one correspondence.
Having the equal ability to combine.
Similar or identical in value, meaning or effect; virtually equal.
Of a map, equal-area.
Equal in measure but not admitting of superposition; applied to magnitudes.
Relating to the corresponding elements of an equivalence relation.
An equivalent weight.
Anything that is virtually equal to something else, or has the same value, force, etc.
To make equivalent to; to equal.