Portuguese

Phrase

quem sabe?

1. Used other than as an idiom: see quem,‎ sabe.
2. who knows (a rhetorical question asked to show that the asker neither knows the answer nor who might know it)
3. who knows (asked to express the idea that anything is possible)

Adverb

quem sabe (not comparable)

1. maybe; perhaps (indicates uncertainty)

Synonyms

• talvez, quiçá