よ

Emphasis (Sentence ending particle)

それは熱あついよ。

That is hot!

Explanation

「よ」 at the end of a sentence tells the listener something they may not know or may have missed, like 'I'm telling you' or 'don't forget': 「明日は休みですよ」. Be careful with it toward a boss or an elder, because it can sound like you are lecturing; with friends, colleagues or younger people it is natural.

Mixed up with

「よ」: I know, you don't, so I'm telling you.

「ね」: we both know, and I want you to agree.

「明日は休みですよ」 (Just so you know, tomorrow is a day off); 「明日は休みですね」 (Tomorrow's a day off, right? / How nice, tomorrow's a day off).

Examples

あの人ひとは先生せんせいだよね。
That over there is a teacher, right?
これはお風呂ふろですよ。
This is a bath.
トムは足あしが速はやいよ。
Tom is a fast runner.
明日あしたは雨あめだよ。
It's going to rain tomorrow!
車くるまは高たかいよね。
Don't you think cars are expensive?
私わたしは背せが高たかいよ。
I am tall.
野球やきゅうは楽たのしいよ。
Baseball is fun.
これはケーキだよ。
This is a cake.
それはいいよ。
That is good.
あれはバスだよ。
That is a bus.
これは練習れんしゅうだよ。
This is practice.
土曜日どようびは暇ひまだよ。
I am free on Saturday.
そうですよ。
That is the case.
今日きょうは水曜日すいようびだよ。
Today is Wednesday.