(archaic) deceit, an unprincipled action.

(mathematics, mathematical analysis) Any series resulting from the decomposition of a periodic function into terms involving cosines and sines (or, equivalently, complex exponentials).

Alternative spelling of fourth wall

The ordinal form of the number sixty-four, describing a person or thing in position number 64 of a sequence.

One of sixty-four equal parts of a whole.

The ordinal form of the number seventy-four, describing a person or thing in position number 74 of a sequence.

One of seventy-four equal parts of a whole.

The ordinal form of the number ninety-four, describing a person or thing in position number 94 of a sequence.

One of ninety-four equal parts of a whole.

The ordinal form of the number eighty-four, describing a person or thing in position number 84 of a sequence.