Before revision: Contrastive descriptions can occur at every level of linguistic structure: speech sounds (phonology), written symbols ( graphology ), word-formation (morphology), word meaning (lexicology), collocation (phraseology), sentence structure (syntax) and complete discourse (textology).
After revision: Contrastive descriptions can occur at every level of linguistic structure: speech sounds (phonology), written symbols ( orthography ), word-formation (morphology), word meaning (lexicology), collocation (phraseology), sentence structure (syntax) and complete discourse (textology).