Index of English words, starting with "sp"

(1) - Spiral (a.) Anything which has a spiral form, as a spiral shell.
(2) - Spiral (a.) A plane curve, not reentrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point called the pole. Cf. Helix.
(3) - Spiral (a.) Of or pertaining to a spiral; like a spiral.
(4) - Spiral (a.) Winding round a cylinder or imaginary axis, and at the same time rising or advancing forward; winding like the thread of a screw; helical.
(5) - Spiral (a.) Winding or circling round a center or pole and gradually receding from it; as, the spiral curve of a watch spring.

(1) - Spirant (n.) A term used differently by different authorities; -- by some as equivalent to fricative, -- that is, as including all the continuous consonants, except the nasals m, n, ng; with the further exception, by others, of the liquids r, l, and the semivowels w, y; by others limited to f, v, th surd and sonant, and the sound of German ch, -- thus excluding the sibilants, as well as the nasals, liquids, and semivowels. See Guide to Pronunciation, // 197-208.

(1) - Spire (n.) The part of a spiral generated in one revolution of the straight line about the pole. See Spiral, n.
(2) - Spire (n.) A spiral; a curl; a whorl; a twist.
(3) - Spire (v. i.) To shoot forth, or up in, or as if in, a spire.
(4) - Spire (n.) The top, or uppermost point, of anything; the summit.
(5) - Spire (n.) A tube or fuse for communicating fire to the chargen in blasting.
(6) - Spire (n.) A tapering body that shoots up or out to a point in a conical or pyramidal form. Specifically (Arch.), the roof of a tower when of a pyramidal form and high in proportion to its width; also, the pyramidal or aspiring termination of a tower which can not be said to have a roof, such as that of Strasburg cathedral; the tapering part of a steeple, or the steeple itself.
(7) - Spire (n.) A slender stalk or blade in vegetation; as, a spire grass or of wheat.
(8) - Spire (v. i.) To breathe.