sergeant vs spy

sergeant

noun
  • A fish, the cobia. 

  • A title sometimes given to the servants of the sovereign. 

  • A bailiff. 

  • The highest rank of noncommissioned officer in some non-naval military forces and police. 

  • UK army rank with NATO code OR-6, senior to corporal and junior to warrant officer ranks. 

  • Any of various nymphalid butterflies of the genus Athyma; distinguished from the false sergeants. 

  • A lawyer of the highest rank, equivalent to the doctor of civil law. 

  • A servant in monastic offices. 

spy

noun
  • A defensive player assigned to cover an offensive backfield player man-to-man when they are expected to engage in a running play, but the offensive player does not run with the ball immediately. 

  • A person who secretly watches and examines the actions of other individuals or organizations and gathers information on them (usually to gain an advantage). 

verb
  • To act as a spy. 

  • To search narrowly; to scrutinize. 

  • To explore; to see; to view; inspect and examine secretly, as a country. 

  • To spot; to catch sight of. 

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