IPA: /ˈjɛstədeɪ/
KK: /ˈjɛstərdeɪ/
The day before today.
I went to the park yesterday.
The day that comes before today.
Yesterday was a sunny day.
Yesterday → The word 'yesterday' is formed from 'ye' (an Old English word meaning 'the') and 'sæde' (meaning 'day'). It refers to the day that has just passed, literally meaning 'the day before today.'
Think of 'the day before today' — 'ye' means 'the' and 'sæde' means 'day.' This helps you remember that 'yesterday' refers to the day that just went by.