This document discusses scalar implicatures and conversational implicatures. Scalar implicatures are meanings implied by the use of expressions on a scale, such as "some" implying "not all". Conversational implicatures depend on the specific context of an utterance. They allow speakers to imply additional meanings without stating them directly. Conversational implicatures can be calculated from utterances, suspended, cancelled, or reinforced depending on how the conversation progresses.