in which the tongue makes a constriction with the area just behind the upper front teeth (incisors)
having the same place of articulation. For example, /m/ and /b/ are because they share a bilabial articulation.
having the same manner of articulation. For example, /m/ and /n/ are because they share the nasal manner.
a sound formed with a complete or narrow constriction of the vocal tract; a stop, fricative, or affricate
a speech sound characterized by an intense, high-pitched noise; for example, the fricatives /s/ (see) and /ʃ/ (she).
a speech sound characterized by an intense frication noise, such as that heard for /s/ (see) and /ʃ/ (she).
voice onset time
the interval between an oral articulatory event (often the release of a stop) and the onset of voicing. If onset of voicing precedes the articulatory event, the sound is said to be prevoiced or to have a voicing lead, and if onset voicing follows the articulatory event it is said to have a voicing lag.
a condition of voicing, usually applied to obstruents, in which voicing or vocal fold vibration begins sometime before an articulatory event, such as a release of a constriction or onset of frication noise.
a manner of articulation in which sound escapes around the sides of the tongue.