Simple Definition:

“He didn’t show up” means he was expected to come but didn’t arrive.

Origin  of the expression:

The phrase “show up” originates from the idea of someone becoming visible or present in a certain place. Over time, it became commonly used to refer to someone being physically present or not at a particular time and place.

Examples of use:

  1.   “He didn’t show up to the meeting, so we had to start without him.” 
  2.   “He didn’t turn up for the party, which was disappointing.” 
  3.   “He was a no-show at the concert, and we were all waiting for him.”
  4. “He stood me up last night. I waited for two hours at the restaurant!”

Traduzione in italiano:

“He didn’t show up” significa che era previsto il suo arrivo, ma non è venuto.

Origine dell’espressione:

La frase “show up” deriva dall’idea di qualcuno che diventa visibile o presente in un certo luogo. Con il tempo, è diventata di uso comune per indicare la presenza fisica o l’assenza in un determinato momento e luogo.p