While the sequence “qo” doesn’t initiate any words in standard English, the digraph “qu” frequently appears. This combination typically represents a /kw/ sound, as seen in words like “quick,” “question,” and “quiet.” The “u” following the “q” is essential for pronunciation and word formation in English, derived from Latin influences on the language.
The consistent pairing of “q” with “u” simplifies orthography and pronunciation. This standardized spelling convention helps readers anticipate the correct phonetic interpretation, unlike some languages where “q” can represent different sounds. Understanding this fundamental principle is key to mastering English spelling and pronunciation, particularly for learners whose native languages use “q” differently. The historical persistence of this digraph highlights its utility and enduring impact on written and spoken English.