Forenoon as a noun is the time period between dawn and noon; morning. while Afternoon as a noun is the part of the day which follows noon, between noon and evening; the part of the day following noon which is daylight all year round; the second half of the working day (in regular office hours).
Part of speech: noun
Definition: The time period between dawn and noon; morning.
Part of speech: noun
Definition: The part of the day which follows noon, between noon and evening; the part of the day following noon which is daylight all year round; the second half of the working day (in regular office hours).
We hope you now know whether to use Forenoon or Afternoon in your sentence.