mentre

In a sentence

• Io studio mentre lui gioca.

  I study while he plays.

  Here, 'mentre' acts as a conjunction introducing a temporal clause indicating simultaneous actions.

• Mentre parlavo, lui continuava a leggere.

  While I was speaking, he kept reading.

  In this sentence, 'mentre' indicates a temporal context during which another action takes place.

• Mentre il sole tramonta, il cielo diventa rosso.

  As the sun sets, the sky turns red.

  'Mentre' is used to describe occurrences happening simultaneously over a duration of time.