Use 'soon' to talk about something that will happen a little time from now. It means not late and quickly.
I will come soon after lunch.
The bus will arrive soon here.
'Soon' can also mean very close to happening now or planned for now. It shows an event will happen very shortly.
The show will start soon on TV.
She is soon to leave the city.
This use of 'soon' shows one event happened quickly after another time in the past. It means not long after.
He left soon after the meeting ended.
She called me soon after dinner time.
'Soon' is used to ask or hope that someone does something quickly. It can also be polite or show impatience.
I hope you fix it soon, please.
Will you soon finish your work?
'Soon' appears in expressions to say something will happen after some time, but the exact time is unknown. It can show certainty over time.
Sooner or later, you will understand this.
She knew soon enough what would happen.
In old or poetic English, 'soon' was used to mean 'right now' or 'at once,' especially in commands or invitations. This is rare today.
Come soon and see this! (old-fashioned)
Make ready soon before the guests arrive.