show one's age

show one's age (third-person singular simple present shows one's age, present participle showing one's age, simple past showed one's age, past participle shown one's age)

1. To indicate by appearance or other factors that a person is no longer young, or ageing, or of an object, no longer new and ageing.
   • 2023 February 22, Howard Johnston, “Southern '313s': is the end now in sight?”, in RAIL, number 977, page 39, photo caption:

     The interior of 313201 is showing its age. The non-alignment with the windows has always been a neck-stretching problem since the high-backed 2+2 seating was installed in around 2010. [page 42, photo caption] The front-end design of the Class 313s has never shown its age.

• act one's age
• look one's age
• have seen better days