A Dictionary of Linguistics and Phonetics David Crystal

byname 63
bunching (n.) A term used in articulatory phonetics to refer to a tongue
position in which the body of the tongue is held high and tense (bunched)
during the production of a sound, as in close vowels (e.g. [i], [u]), and fricatives
articulated in the palatal-alveolar area (e.g. [à]).
bundle (n.) A term used in phonology to characterize one conception of the
phoneme: in the approach of the Prague School the phoneme is seen as an
aggregate (‘bundle’) of phonetic distinctive features. The English phoneme
/s/, for example, can be seen as a result of the combination of the features of
alveolarity, friction, voicelessness, etc.
burst (n.) A term used in acoustic phonetics, referring to a sudden, short
peak of acoustic energy which occurs in the production of certain sounds, such
as at the release stage of plosives, and in some flaps and trills.
byname (n.) In onomastics, a supplementary name, added to someone’s personal
name in order to help identification, and sometimes replacing it completely.
For example, several singers with identical surnames in Wales are publicly
known by their village of origin (e.g. Williams Penygroes, Williams Brynsiencyn).
History is full of bynames – Eric the Red, James the Bold, Ethelred the Unready.
A byname can in principle be distinguished from a surname, because it is not
its purpose to be passed on between generations; however, many surnames
undoubtedly started out life as bynames (e.g. Michael Carpenter).