(chiefly women's speech) first person singular pronoun: I, me

(computing, dated) antivirus software

(software) free software (software that can be freely copied and modified)

business class

business opportunity

business hotel

private; mine

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law