variable acoustics variables variance components variance- covariance approach variant variation variété varnish coating vax-scale vector analysis vector spase vegetables vehicle routing algorithms vehicles vendetta vendor managed inventory ventilation venture capital venture capitals verb verb inflection verb system verbal aspect verbal aspect (grammatical – lexical, perfective – imperfective) verbal communication verbal forms verbal violence verbal violence, verbal abuse, health workers verbal/non-verbal attitudes verification verified boot vernacular architecture version control vertical drains vertical gardens vessel viability viability index vice principal victim victimization victorian illustration video video codecs video conferencing video game video games video games, indie game, esports, video input video mapping video, off-air, authentic, speaking, listening, writing, skills, EFL video, speaking, listening, integration of skills, lesson proposals video-based lesson videoconference/ing videogames videos videos popularity viewer views views & opinions towards employment views of kindergarten teachers views of recycling views of substitute teachers views of teachers views of teachers on bilingualism and cultural diversity views of the school staff vignette villas, πολυτέλεια, τουρισμός, ενοικιαστές, villa agents virtual virtual acting, scenery, filmmaking virtual environments virtual force algorithms virtual heritage virtual information virtual laboratory virtual museum virtual museums virtual reality virtual simulations of natural phenomena virtual tour virtual world virtual worlds virtues visibility visible thinking visioconférence vision of the intervention visitors visual and historical literacy visual comfort visual communication visual communication, Semiotics, poster, cultural festivals of Municipality of Thessaloniki, poster qualitative analysis visual event, exhibition visual identity, logo, website, applied arts, design visual impairment visual implants, restoration of vision, retinitis pigmentosa, blindness rehabilitation, visual path restoration visual literacy visual merchandising visual narration visual perception visual performance visual programming visual representations visual studio visualization visualization of educational scenarios visually impaired people vitamin D vitamine d vitamins vitrification vmi vocabulaire vocabulary vocabulary acquisition vocabulary acquisition/retention vocabulary and grammar vocabulary development vocabulary enhancement vocabulary learning strategies vocabulary skills vocabulary teaching vocabulary, teaching strategies, learning strategies, second language, illustration, fairy tale, myth vocabulary/λεξιλόγιο vocational education vocational education and training vocational education/ training vocational guidance vocational high school vocational high schools vocational rehabilitation vocational senior school vocational training vocational training institutes vocational training, Evening Vocational Upper Secondary School (E-EPAL), educational reform, diploma, certificate voice volatile organic compounds (VOCs) volatility, Athen’s stock exchange, estimator, standard deviation volleyball voluntary associations voluntary blood donor voluntary redundancy voluntary tax compliance volunteer volunteer blood donor volunteer instructors volunteer tourist volunteering volunteering and education volunteering motivations volunteerism volunteers von Neumann vote voucher voyage vulnerabilities vulnerability detection systems vulnerable social groups wage wages wall system walls war effects war photography warehouse organization, Logistics, electrical equipment, evaluation methodologies of construction projects, multi-criteria analysis washback waste waste - 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