o vs teletypewriter

o

• A zero (used in reading out numbers). 

• Operator 

• The name of the Latin-script letter O/o. 

• Object, see SVO 

• Over 

• The fifteenth letter of the English alphabet, called o and written in the Latin script. 

teletypewriter

• Synonym of teletype (“telegraph that automatically prints transmited messages in letters rather than Morse code or other symbols”).