After climbing the hill, I realized I'm no spring chicken!

no longer young

My assistant is a bit wet behind the ears. He still has a lot to learn.

wet behind the neck, young and inexperienced

Becky's worried she's getting on in years after spotting more gray hairs.

getting old

Sanjay feels as old as the hills when his kids talk about technology.

extremely old

These bright young things have just started college.

young, enthusiastic, fashionable, or ambitious people

This TV show bridges the generation gap. The whole family loves it.

appeals to people of all ages

My grandpa got married again at the ripe old age of 92

very old age

Brendan's teacher told him to start acting his age.

behaving in a way appropriate to his age

Sally first sang on stage at the tender age of 7.

very young age

I feel my age when I go shopping with my children.

am conscious of being older

I've just turned 40, and I'm in the prime of my life. I always go to the gym after work.

at my best; healthy and successful

Katie started learning piano when she was knee-high to a grasshopper.

very young

I'm too long in the tooth to try out skydiving.

old

Derek and Joan spent their twilight years traveling the world.

Midnight years, the last years of someone's life

I can't come to that nightclub with you! I'm over the hill.

old; past my best years

Angela might be 84, but she is still young at heart.

youthful, despite being old

Damien's at that awkward age and finds it hard to talk to people.

the period of adolescence when people feel very self-conscious

In many countries, there is a big celebration when young people come of age.

reach maturity, or have the same legal rights as adults

Many singers' voices improve with age.

get better as they get older

Stephen has reached the great age of 100.

very old age