To speak broadly, hieroglyphs are of three kinds:
phonetic signs, ideograms, and determinatives.
The first are used for writing sounds (actually consonants); for
example, the sign
is used for the sound ``kheper'' because the scarab is
called so; the sign
is used for the consonant ``m'' because the word owl
starts with an ``m'', and so on... Ideograms are used to
write the thing or the idea represented by their drawing. So
is used for writing the word ``bull'', and
, the slate of a scribe, is used for writing the word
``scribe.''
As Egyptian doesn't use space between the words, and doesn't write
vowels, this writing would have been very ambiguous, if it hadn't used
determinatives. These are signs used as a word-ending, to specify
the semantic category of a word. For example, the signs
read ``iew''. But that might be the verb ``to lament'',
or the substantives ``dog'' or ``wrongdoing''.
So three different determinatives are used:
, which designates any action of the mouth,
for dogs, and
, a sign used for small and evil things alike.
So the word
means ``to lament,'' whereas
means ``dog'' and
means ``wrongdoing''.