sommaren

In a sentence

• Sommaren var mycket varmare än förra året.

  The summer was much warmer than last year.

  Here, 'sommaren' is a definite form of the noun 'sommar', meaning 'the summer', used to refer to a specific summer season, likely the one just passed.

• Vi ska resa till stranden nästa sommar.

  We are going to travel to the beach next summer.

  In this sentence, 'sommar' is in its indefinite singular form, referring to the upcoming summer in a general sense.

• Under sommaren njöt vi av solen och värmen.

  During the summer, we enjoyed the sun and the warmth.

  Here, 'sommaren' is again used in its definite form, specifically emphasizing the summer as a period in context.