もしかして
もしかして · moshikashite · JLPT N1 · adverb
perhaps
Sounds like 'moshi-moshi, cashier': maybe the phone's answer is 'perhaps' (もしかして = if by chance)
もし (if) + か (question particle) + して (doing it) = 'if perhaps'. Search engines use it for 'Did you mean...?' suggestions, so it means possibly or perhaps.