The article is dedicated to the problem of the development of foreign language lexical competency of future marine specialists by means of interactive teaching methods.Today, mastering a foreign language is considered an integral component of training future specialists in the maritime field, and for the productive performance of foreign speech acts, the main factor of training remains the knowledge of the terminological maritime vocabulary of the English language, because without knowledge of lexical units, no specialist will be able to express his own opinion and understand the opinion of others.The research attention is focused on the analysis of the phenomenon "foreign language lexical competency".It is interpreted as the cadets' ability to formulate correctly their statements in English, to operate correctly English-language terminological vocabulary relevant to the professional context, to understand marine commands within the limits of professional communication; to be aware of lexical norms of using professional vocabulary in shipping discourse.The peculiarities of using interactive teaching methods in the process of training future specialists in the maritime industry are considered.Interactive methods are actively introduced into the process of forming English lexical competency and are based on the lively interaction of all participants in the educational process and feedback between them and the teacher.Cadets not only learn English vocabulary, but also train to think critically, work in a team, solve professional problems, make decisions independently, and participate in collective Журнал «Перспективи та інновації науки» (Серія «Педагогіка», Серія «Психологія», Серія «Медицина») № 2(36) 2024 545 discussions.The main interactive methods that can be offered for introduction into the process of teaching foreign language vocabulary to cadets are the following: explanation of lexical units in a foreign language, formation of word families, grouping by categories, associative memorization, semantic combining, filling in lexical gaps, expanding or shortening statements, adequate replacement of words, composing mini-dialogues / monologues, listening to radio messages and responding to them.