the set of lexical items in a language that are most resistant to replacement, referring to the most common and universal elements of human experience, such as parts of the body (foot, eye), universal features of the environment (water, star), common activities (eat, sleep), and the lowest numerals.
the part of a sentence that communicates new information about the topic
the study of the rules for the formation of grammatical sentences in a language
a sequence of phonemes constituting a minimal unit of grammar or syntax, and, as such, a representation, member, or contextual variant of a morpheme in a specific environment
the patterns of word formation in a particular language, including inflection, derivation, and composition
the total inventory of morphemes in a given language plus their combinations with additional and derivative morphemes
the act or process of achieving mastery of a language
