The voiceless palatal affricate is a type of consonantal sound, used in some spoken languages. The symbols in the International Phonetic Alphabet that represent this sound are ⟨c͡ç⟩ and ⟨c͜ç⟩, and the equivalent X-SAMPA symbol is c_C. The tie bar is sometimes omitted, yielding ⟨cç⟩ in the IPA and cC in X-SAMPA. This is potentially problematic in case of at least some affricates, because there are languages that contrast certain affricates with stop-fricative sequences. Polish words czysta ('clean (f.)', pronounced with an affricate /t͡ʂ/) and trzysta ('three hundred', pronounced with a sequence /tʂ/) are an example of a minimal pair based on such a contrast.