As nouns the difference between preread and prehead
is that preread is an operation in which data is read in advance of its being needed while prehead is {{cx|phonetics|lang=en}} The group of unstressed syllables preceding the head (if present) or nucleus (if there is no head).
As a verb preread
is to read in advance.
preread
English
Verb
To read in advance.
Noun
(
en noun)
(computing) An operation in which data is read in advance of its being needed.
prehead
English
Noun
(
en noun)
The group of unstressed syllables preceding the head (if present) or nucleus (if there is no head).