In APiCS, the term adjective should be taken in a purely semantic sense, as a word with a lexical meaning such as ‘big’, ‘good’, or ‘red’ (denoting a descriptive property). It does not include demonstratives, numerals, or words meaning ‘other’. In some languages, like English, adjectives form a distinct word class. In other languages, however, adjectives are verbs or nouns. However, for the purposes of the APiCS features, a word is treated as an adjective, regardless of its word class, as long as it denotes a descriptive property. We assume that all languages have adjectives in this semantic sense.