allt

In a sentence

• Jag vill veta allt om det här.

  I want to know everything about this.

  The word 'allt' here is used as a pronoun referring to 'everything', indicating the entirety of knowledge or information about a specific topic.

• Allt känns bättre nu när solen skiner.

  Everything feels better now that the sun is shining.

  In this sentence, 'allt' is used metaphorically to mean 'everything in general' or 'the situation as a whole', affecting the person's feelings.

• Det var allt jag behövde säga.

  That was all I needed to say.

  Here, 'allt' functions as a determiner equivalent to 'all' in English, specifying the total amount of what was needed to be spoken.