dinner vs mealtime

dinner

noun
  • The food provided or consumed at any such meal. 

  • A meal given to an animal. 

  • A midday meal (in a context in which the evening meal is called supper or tea). 

  • A formal meal for many people eaten for a special occasion. 

  • The main meal of the day, often eaten in the evening. 

  • An evening meal. 

verb
  • To provide (someone) with a dinner; to dine. 

  • To eat a dinner; to dine. 

mealtime

noun
  • The appointed time at which a meal is served or eaten. 

How often have the words dinner and mealtime occurred in a corpus of books? (source: Google Ngram Viewer )