Be Careful
Take Care
expression
This word contains the words 気 (energy) and 付ける (to attach). So, when you attach energy to something you're focusing in on it, right? This word is a sort of "order" as well, since it's te-form there at the end. It's a set phrase people say to other people who are doing dangerous things. It's kind of like saying "Attach energy to what you're doing! Stay focused!" A simpler way to translate this would be to say this word means be careful or take care, though. Learn this word so that you can always show that you're caring for your friends!
The readings come from the two words 気 and 付ける. So long as you know those from the previous levels, you should be able to read this one as well.
気を付けてね
be careful
気を付けてする
to do something carefully
気を付けてください
please be careful
ストーブの火に気を付けて下さい。
Please be careful of the fire on the stove.
今日は雨かもしれないから、外出する時は気を付けてレインコートをもってね。
It might rain today, so be careful and take a raincoat when you go out.
この国の大きな町では、スリが多いから気をつけてね。
Be careful in big cities in this country, because there are many pickpockets.
辺りは明るくないので、足元に気をつけて下さい。
It's not so bright around here, so watch your feet.