Proposal, Proposition, Meaning

The meaning of a green light is for a car to go.  Similarly, the cry of a hungry baby is a signal to its mother to feed it.  More generally, an utterance is a signal, to an addressee, for a response specified by its content--to act, to speak in return, to absorb the content for future use, etc.  Furthermore, a well-articulated Signal is a Proposal.  So, a Proposition is a Proposal that has been abstracted from its interpersonal purposive context.  Similarly, the 'meaning' of a Proposition, e. g. its 'Reference' or its 'Sense', is abstracted from the Response that is meant in a Proposal, more so in the case of a Sense than in a Reference, which retains some of the components of a concrete purposeful context.  For example, if "It is raining" is a proposal to an addressee to bring an umbrella, as a proposition, its 'referent' is weather conditions concurrent with its utterance, and its 'sense' is presumably general to all such utterances.  So, as a Proposal is de-personalized into a Proposition, the concept of 'Meaning' is abstracted from it original concrete practical character in Communication as the execution of what is proposed, an abstraction that is codified in Platonistic Philosophy of Language, pioneered by Frege.  Dewey, notably, in works such as Logic:Theory of Inquiry, typically ignored by many practitioners of the Fregean tradition, re-grounds Language in Communication, but without doing likewise to Sign in Signal, or to Proposition in Proposal.