~さ (adjective nominalizer)

Being surrounded by the stillness of night brings a peaceful, relaxed feeling.

The more you study, the more you realize how little you know.

Out of sheer terror, she clung to him.

So while you're doing that — thinking about me but not quite able to be honest about it — that tsundere-ness of yours is all the rage among young men right now!

His greed led to his downfall.

A dancer's grace is born from strenuous practice, sweat, and suffering.

Yoko danced with a grace that astonished everyone.

Ki was so happy she could barely speak.

I've been so caught up with work that I've been out of touch — my apologies.

She'd been tormented by his shamelessness.

She'd grown sick of his persistence.

She doesn't realize how beautiful she is.

She can't see her own beauty.

She tasted the cake to check whether the sweetness was right.

She loves the peace and quiet of that town.

She didn't even have the basic courtesy to say sorry.

Comparing a dog's sense of hearing to a human's, it's vastly superior.

The good weather added to the fun of the picnic.

The eggs were sorted by size and weight.

Caution is the better part of valor.

It's ferociously hot.

Clarity is what matters most.

My daughter weighed 8 pounds at birth.

The distribution of wealth is a huge problem, isn't it.

The mother was embarrassed by her son's bad manners.

I was startled by the severity of my mother's anger.

Their envy was directed at her beauty.

She brags about her beauty.

She is boasting about her beauty.

She was trembling with fear.