Letters that make retro
o, e, r, t are letters that make 'retro'
retros is a word created by adding a letter to 'retro'
2 possible definitions for 'retro'
Under this definition, retro is a noun and has the following properties:
'retro' can be a type of fashion.
ex post facto, retroactive, retro are derivatives of 'retro'.
Under this definition, retro is an adjective and has the following properties:
ex post facto, retroactive have the same meaning as 'retro'
retro is a derivative of retro.
retrospective is similar to retro.
"retroactive tax increase", "an ex-post-facto law", "retro pay"