I. noun Date: 14th century fitness or suitability for performing an action or fulfilling a requirement, 2. something (as an appliance, device, or service) conducive to comfort or ease, toilet 3, a suitable or convenient time , freedom from discomfort ; ease , II. adjective Date: 1917 designed for quick and easy preparation or use
CONVENIENCE
Meaning of CONVENIENCE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012