Full Definition of LANDSCAPE. transitive verb. : to modify or ornament (a natural landscape) by altering the plant cover. intransitive verb. : to engage in landscape gardening.— land·scap·er noun. See landscape defined for English-language learners.earn More About LANDSCAPE. Thesaurus: All synonyms and antonyms for landscape. Spanish Central: Spanish translation of landscape. Nglish: Translation of landscape for Spanish speakers. Britannica English: Translation of landscape for Arabic speakers.