sound / voice / tone / noise / reputation / classifier for sounds
声
=
士
+
尸
+
丨
:
Sherlock Holmes (sh) hears the terrifying sound (声) of bone (丨) on stone in front of the engine ((e)ng1), and he's sure that there must be a ghost (尸). Indeed it's only the bachelor (士) who wants to scare Sherlock.
the four tones of Middle Chinese: level tone 平聲|平声, rising tone 上聲|上声, departing tone 去聲|去声 and entering tone 入聲|入声 / the four tones of Modern Standard Mandarin
ideogram plus phonetic (one of the Six Methods 六書|六书 of forming Chinese characters) / also known as phonogram, phonetic compound or picto-phonetic character