RE vs a

RE

prep
  • Regarding, re. 

noun
  • Abbreviation of "recursively enumerable"; the class of decision problems for which a 'yes' answer can be verified by a Turing machine in a finite amount of time. 

a

prep
  • To do with time; Each, per, in, on, by. 

  • To do with status; In. 

  • To do with separation; In, into. 

  • Of. 

pron
  • He, or sometimes she, it. 

adv
  • across 

  • All. 

verb
  • Have. 

noun
  • The name of the Latin script letter A / a. 

  • The name of the Cyrillic script letter А / а. 

adj
  • All. 

intj
  • ah; er (sound of hesitation) 

symbol
  • Distance from leading edge to aerodynamic center. 

  • allele (recessive) 

  • specific rotation 

  • specific absorption coefficient 

character
  • The first letter of the English alphabet, written in the Latin script. 

article
  • One; any indefinite example of; used to denote a singular item of a group. 

  • Any, every; used before a noun which has become modified to limit its scope; 

  • One certain or particular; any single. 

  • Used before plural nouns modified by few, good many, couple, great many, etc. 

  • Used in conjunction with the adjectives score, dozen, hundred, thousand, and million, as a function word. 

  • The same; one. 

  • Someone or something like; similar to; Used before a proper noun to create an example out of it. 

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