13-Letter Words Containing: I,S,I,M

• a period of five years

• the mathematical process of finding the maximum value of a function

• the act of raising to the highest possible point or condition or position

• To emphasize again; to reiterate.

• To perform a vasectomy

• Somewhat or partially civilized.

• the use of symbols to convey meaning

• something visible that by association or convention represents something else that is invisible

• the practice of investing things with symbolic meaning