There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
keyboard
(noun) holder consisting of an arrangement of hooks on which keys or locks can be hung
keyboard
(noun) device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
Source: WordNet® 3.1
keyboard (plural keyboards)
(computing, etc.) A set of keys used to operate a typewriter, computer etc.
(music) A component of many instruments including the piano, organ, and harpsichord consisting of usually black and white keys that cause different tones to be produced when struck.
(music) A device with keys of a musical keyboard, used to control electronic sound-producing devices which may be built into or separate from the keyboard device.
• (electronic musical device): electronic keyboard
keyboard (third-person singular simple present keyboards, present participle keyboarding, simple past and past participle keyboarded)
(intransitive) To type on a computer keyboard.
Source: Wiktionary
Key"board`, n.
Definition: The whole arrangement, or one range, of the keys of an organ, typewriter, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.