Portuguese

Adverb

cada vez (not comparable)

1. Used other than as an idiom: see cada,‎ vez.
2. (followed by comparative; can despite the literal meaning also be used for gradual change) increasingly; more and more

   Está ficando cada vez melhor.‎

   It is becoming increasingly better.

   Fica cada vez mais difícil com o tempo.‎

   It becomes more and more difficult with time.

Spanish

Etymology

Literally, "each time"

Adverb

cada vez

1. every time
2. (idiomatic) more and more, increasingly