- Ambiguity(as used in linguistics and philosophy of language)
- When something can be understood or interpreted in more than one way.
- Ellipsis(in linguistics and philosophy of language)
- In language, when you leave out words that are already understood from context—like saying 'I like pizza, but he doesn't' instead of 'I like pizza, but he doesn't like pizza.'
- Ellipsis parallelism(in linguistics)
- The idea that repeated or left-out words in sentences follow parallel patterns in structure or meaning.
- Sag, Ivan (1976)(in linguistics)
- A linguist who proposed that how words are left out of sentences is determined by grammar rules, not by meaning.
- Semantic scope(in linguistics and philosophy of language)
- How the meaning of a word or phrase reaches across other parts of a sentence to affect what they mean.
- Syntactic(as used in linguistics)
- Related to the rules and structure of how words are arranged in language, rather than their meaning.
- Williams, Edwin (1977)(in linguistics)
- A linguist who independently developed theories about how grammar (not meaning) controls when words can be left out of sentences.
- identity conditions(Metaphysics of mental states)
- The criteria that determine what makes an entity the same entity across time or contexts, i.e., what individuates it.
- sense-generality(Section 5.3, analytic-synthetic distinction)
- A property of a term that applies across multiple cases under a single meaning, as distinguished from ambiguity where multiple distinct meanings are present