Index of English words, starting with "si"

(1) - Sincerity (n.) The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense; sincereness.

(1) - Sincipital (a.) Of or pertaining to the sinciput; being in the region of the sinciput.

(1) - Sinciput (n.) The part of the head of a bird between the base of the bill and the vertex.
(2) - Sinciput (n.) The fore part of the head.

(1) - Sine (prep.) Without.
(2) - Sine (n.) The perpendicular itself. See Sine of angle, below.
(3) - Sine (n.) The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity.