Commentary: Syntax is: NP1[agent] SIGNIFY NP2 NP1[instrument] SIGNIFY NP2[patient]
This morpheme signifies the plural in Spanish.
'It is the tale told by an idiot, full of sound and fury, signifying nothing.' -Hamlet
The driver signified his intention to make a left turn.
WordNet 3.0 Sense Numbers: 1, 2, 3