Practise the thinking. Keep the judgement.
用事 (youji): An errand; something to do
ようじ
youji
Meaning
An errand; something to do
Two original examples
午後は用事があります。
I have something to do this afternoon.
用事が終わったら電話します。
I will call when I have finished my errand.
Usage and distinctions
用事 refers to an errand, matter or engagement. It is not automatically a formal appointment. ようじ has a long vowel; 幼児（young child）and 楊枝（toothpick）are different words with the same reading.