The vowel sound represented by the International Phonetic Alphabet symbol /o/ is typically referred to as the “long o” sound. This diphthong, a combination of two vowel sounds within a single syllable, begins with a rounded, back vowel similar to “aw” and glides towards a closer, more fronted “oo” sound. Examples include words like “so,” “go,” “no,” and “toe.” The spelling can vary, appearing as “o,” “oa,” “oe,” “ow,” and occasionally “ough.”
Understanding this vowel sound is fundamental to accurate pronunciation and effective communication in English. Mastery facilitates clear comprehension, both in speaking and listening. Historically, the pronunciation of this vowel has shifted over time, influenced by various dialects and the Great Vowel Shift. Its consistent presence in frequently used words underscores its significance in the language.