Correct

老龄

/ lǎolíng / 
Strokes

Definition

old age/aging/aged/geriatric/the aged

Example

As a Noun

old age

1
Lǎolíng
老龄
bǎoxiǎn
保险

old-age insurance

As a Noun

the old/aged

2
Lǎolíng
老龄
wèntí
问题

ageing problem