meaning of "a sort of back number"

Test No. [color=blue]incompl/advan-68 “Back Again”, question 3

She was a very famous film star some 40 years ago but now she’s regarded as unimportant - a sort of back
.

(a) figure
(b) digit
© number
(d) person

Test No. [color=blue]incompl/advan-68 “Back Again”, answer 3

She was a very famous film star some 40 years ago but now she’s regarded as unimportant - a sort of back
number.

Correct answer: © number

Hello Alan and Torsten ! I don’t understand the expression! … a sort of back number

thanks
Logician :oops:

Hi Logician,

This means the sort of person who is not now famous or important. It comes from the expression used for a magazine copy that is from the past and is not the current issue.

Alan