ch can form part of a group of sounds. For even brutes utter
indivisible sounds, none of which I call a letter. The sound I mean
may be either a vowel, a semi-vowel, or a mute. A vowel is that which
without impact of tongue or lip has an audible sound. A semi-vowel, that
which with such impact has an audible sound, as S and R. A mute, that
which with such impact has by itself no sound, but joined to a vowel
sound becomes audible, as G and D. These are distinguished according
to the form assumed by the mouth and the place where they are produced;
according as they are aspirated or smooth, long or short; as they are
acute, grave, or of an intermediate tone; which inquiry belongs in
detail to the writers on metre.

A Syllable is a non-significant sound, composed of a mute and a
vowel: for GR without A is a syllable, as also with A,--GRA. But the
investigation of these differences belongs also to metrical science.

A Connecting word is a non-significant sound, which neither causes nor
hinders the union of many sounds into one significant sound; it may
be placed at either end or in the middle of a sentence. Or, a
non-significant sound, which out of several sounds, each of them
significant, is capable of forming one significant sound,--as {alpha mu
theta iota}, {pi epsilon rho iota}, and the like. Or, a non-significant
sound, which marks the beginning, end, or division of a sentence; such,
however, that it cannot correctly stand by itself at the beginning of a
sentence, as {mu epsilon nu}, {eta tau omicron iota}, {delta epsilon}.

A Noun is a composite significant sound, not marking time, of which no
part is in itself significant: for in double or compound words we do not
employ the separate parts as if each were in itself significant. Thus
in Theodorus, 'god-given,' the {delta omega rho omicron nu} or 'gift' is
not in itself significant.

A Verb is a composite significant sound, marking time, in which, as in
the noun, no part is in itself significant. For 'man,' or 'white' does
not express the idea of 'when'; but 'he walks,' or 'he has walked' does
connote time, present or past.

Inflexion belongs both to the noun and verb, and expresses either the
relation 'of,' 'to,' or the like; or that of number, whether one or
many, as 'man' or 'men '; or the modes or tones in actual delivery, e.g.
a question or a command. 'Did he go?' and 'go' are verbal inflexions of
this kind.

A Sentence or Phrase is a composite significant so