The term SMART (KNOW-IT-ALL) can be represented by two crossword solutions, ALEC (4 letters) and ALECK (5 letters). ALEC is a shortened form of the name Alexander, which is derived from the Greek name Alexandros, meaning 'defender of men'. ALECK is a variant spelling of ALEC, and is also derived from the same Greek name. Both ALEC and ALECK are used as informal terms to describe someone who is very knowledgeable or wise.