Sounds which occupy an intermediary position between vowels and all other consonants are called a _____?

• A. Approximant
• B. Vowel
• C. Diphthong
• D. Consonant

Answer: (A)

Approximants are consonants with a vowel-like, very open articulation, often called semi-vowels. They sit between vowels and the more constricted consonants because the space between the articulators is only lightly narrowed, producing a smooth, glide-like sound rather than a complete obstruction or a turbulent frication. This combination of vocal-tract openness and consonantal function is what gives them that midway quality.

In English, sounds like w and y (and the liquid r and l in many contexts) are classic examples of approximants. They behave like consonants in the syllable structure but share vowel-like sonority and smooth articulation, which is why this term best captures sounds that occupy that intermediary position. A vowel would be the nucleus of a syllable with an open vocal tract; a diphthong is a vowel sound that changes quality; and a broad consonant category doesn’t specifically describe the vowel-like, semi-vowel nature of these sounds.