(1) A term used in grammatical analysis to refer to a place in a construction into which a class of items can be inserted. For example, in the sentence The children - home, the ‘slot’ marked by the dash can be ‘filled’ by came, are, went, etc. - a subclass of verbs. Approaches characterized by this emphasis are sometimes referred to as slot-and-filler models. The analysis of sentence structure in terms of slots is a major feature of tagmemic grammar, where the notion is used to identify the filler items (e.g. ‘subject slot’, ‘object slot’).
(2) A term used in autosegmental phonology for an element on the skeletal tier. These elements are also known as V-slots and C-slots, referring to the segments to which vowels and consonants must associate if they are to be realized.