Beta

['biːtə] or ['betə]

(noun.) the 2nd letter of the Greek alphabet.

(noun.) beets.

(adj.) preliminary or testing stage of a software or hardware product; 'a beta version'; 'beta software' .

(adj.) second in order of importance; 'the candidate, considered a beta male, was perceived to be unable to lead his party to victory' .

塞西莉亚校对--From WordNet