Oxford Advanced American Dictionary

Definition of ribbon noun from the Oxford Advanced Learner's Dictionary

ribbon

noun
ribbon pronunciation English ˈrɪbən ribbon pronunciation American ˈrɪbən
 
1 [uncountable, countable] a narrow strip of material, used to tie things or for decorationa present tied with yellow ribbonlengths of velvet ribbonShe was wearing two blue silk ribbons in her hair.2 [countable] something that is long and narrow in shapeThe road was a ribbon of moonlight.3 [countable] a ribbon in special colours, or tied in a special way, that is given to somebody as a prize or as a military honour, or that is worn by somebody to show that they belong to a particular political party compare rosette4 [countable] a long strip of material containing ink that you put into typewriters and some computer printers
Idioms

cut/tear, etc. something to ribbons

to cut/tear, etc. something very badly
His coat was torn to ribbons by the barbed wire fence.