Utterer's meaning and intentions

(la) It would be approximately true to say that S means (has as one of its meanings) "If I shall then be assisting the kind of thing of which lawns are composed to mature, I shall have no time for reading." It would also perhaps be approximately true to say that S means (has as another of its meanings, in at least one version of English) "If I shall then be assisting the marijuana to mature, I shall have no time for reading." Such meaning-specification I shall call the specifications of the timeless meaning(s) of a "complete" utterance-type (which may be a sentence or may be a "sentencelike" nonlinguistic utterance-type, such as a hand-signal). (I b) It would be true to say that the word "grass" means (loosely speaking) "lawn-material," and also true to say that the word "grass" means "marijuana." Such meaning-specifications I shall call the specifications of the timeless meaning(s) of an "incomplete" utterance-type (which may be a nonsentential word or phrase, or may be a nonlinguistic utterance-type which is analogous to a word or phrase).