kio tukete means be careful
Ki o tsukete kudasai, or more informally, ki o tsukete (ne).
ki o tsukete.
You may say 'ki o tsukete [kudasai] ne.'
「気をつけてね」 (ki o tsukete ne) [informal] 「気をつけてください」 (ki o tsukete kudasai) [formal]
You may say 'ki o tsukete (kudasai/ne).'
You may say 'ki wo tsukete.'
気を付けて下さい (ki o tsukete kudasai)
Be careful about your man.
You may say 'ki wo tsukete ne/kudasai.'
お大事に /o dai ji ni/ is a phrase that means 'take care' in Japanese. 気を付ける /ki wo tsu ke ru/ literally means 'to be careful, to pay attention, to take care'. In imperative form it would be 気を付けてください /ki wo tsu ke te ku da sai/.
ki wo tsukete (wo is pronounced like "oh") -- romanji き を つけて - hiragana 気 を 付けて - kanji + hiragana
who were the first people to play ki o rahi