mid:

mid [1]: pronounced with the tongue neither high [1] nor low [1], but in-between. (See the diagrams of the principal organs of articulation and phonetic symbols for vowels.) The vowel "e" as in "end" is a mid vowel, and so is the first "o" of "coronary". (The "long o" sound in most English words, e.g. "home", is a diphthong, [ou].) See also close, open. [Spanish: medio [1]]

mid [2]: in a tonal language, a medium-frequency pitch which contrasts with a higher [3] and a lower [3] pitch. In a language with three tones, the mid tone is sometimes represented by the absence of a written accent, or sometimes by a macron. Thus a or a-macron may represent a mid-tone a. [Spanish: medio [2]]