καλός in English:

Good for you.

It's a good idea to study the language and culture of the country you're going to visit.

This is a sentence, that has the syllable count, of a good haiku.

Good morning. You're a bit late today, aren't you? "Yes, I ran into a bit of trouble."

A wide leather belt would look good with that dress.

The transfer student in the other class is a super good looking guy.

It's a good idea, to be sure, but it's hard to put it into practice.

The good harvest brought down the price of rice.

We had a good many anxious moments, but everything turned out all right in the end.

The true secret of writing a good letter is to write as if you were talking.

Generally speaking, a waiter in Japan gives good service.

Some people insist that television does more harm than good.

I hear that studying in the morning is more effective. Studying one hour in the morning is as good as three hours at night.

You can teach good manners to children without resorting to punishment.

His old company gave him the shaft. But I admire the way he turned bad luck into good and did even better with his own business.

It's nice.

If you don't have anything nice to say, don't say anything at all.

At Christmas he went out of his way to buy me a really nice model plane.

The style is nice, but do you have it in a different color?

Whenever my uncle comes, he brings some nice things for us.

Beef stew should be nice and thick.

For goodness' sake, please be nice to him.

We all wondered why she had dumped such a nice man.

That couple spends quite a bit of money eating at nice restaurants.

Nice guys finish last.

Why don't you try this jacket on? It looks nice with your trousers.

Nice weather added to our pleasure.

It seemed like a nice idea at the time, but I wish I hadn't done it.

What I don't understand is why the children aren't being allowed to play outside on such a nice day.

A nice roast chicken is one of my favorite dishes.