even vs odd

even

adj
  • Divisible by two. 

  • Flat and level. 

  • Equal in proportion, quantity, size, etc. 

  • On equal monetary terms; neither owing nor being owed. 

  • parallel; on a level; reaching the same limit. 

  • On equal terms of a moral sort; quits. 

  • Convenient for rounding other numbers to; for example, ending in a zero. 

  • Without great variation. 

adv
  • In reality; implying an extreme example in the case mentioned, as compared to the implied reality. 

  • Emphasizing a comparative. 

  • Signalling a correction of one's previous utterance; rather, that is. 

noun
  • An even number. 

verb
  • To make flat and level. 

odd

adj
  • Numerically indivisible by two. 

  • About, approximately; somewhat more than (an approximated round number). 

  • Scattered; occasional, infrequent; not forming part of a set or pattern. 

  • Used or employed for odd jobs. 

  • Left over or remaining (as a small amount) after counting, payment, etc. 

  • Numbered with an odd number. 

  • Without a corresponding mate in a pair or set; unmatched; (of a pair or set) mismatched. 

  • Not regular or planned. 

  • Differing from what is usual, ordinary or expected. 

  • Left over, remaining after the rest have been paired or grouped. 

  • Peculiar, singular and strange in looks or character; eccentric, bizarre. 

  • On the left. 

  • Out of the way, secluded. 

noun
  • An odd number. 

  • Something left over, not forming part of a set. 

How often have the words even and odd occurred in a corpus of books? (source: Google Ngram Viewer )