the gray dollar
noun[S]
US(UKthe grey pound)uk/ˌɡreɪ ˈdɒl.ər/us/ˌɡreɪ ˈdɑː.lɚ/themoneythatolderpeopleas agrouphaveavailabletospend
灰镑（老年人手中可支配的钱）The elderly
- a ripe old ageidiom
- age
- aged
- ageism
- ageist
- agism
- crock
- geriatric
- geriatrics
- gerontological
- gerontology
- infirmity
- nonagenarian
- OAP
- pension fund
- pensioner
- rest home
- senility
- the grey market
- the grey pound