Final answer:
The study of rules and practices for constructing meaningful bits of language, such as words, is related to the fields of grammar, lexicon, and phonemes within linguistics.
Step-by-step explanation:
The study of rules and practices for constructing meaningful bits of language, like words, is associated with a field in linguistics focusing on grammar, lexicon, and phonemes. Grammar is a set of rules used to convey meaning through the use of a language's vocabulary or lexicon. Words in any language are built from smaller sound units called phonemes, which are combined to form morphemes, the smallest units of language. Together, using semantics and syntax, which also form part of a language's grammar, we achieve coherent and meaningful communication. The systematic study of these elements falls within the domain of linguistics, particularly in the subfields concerned with word formation and sentence structure.