(computing, mobile telephony) Android (an operating system for mobile devices)

(typography) the distribution of any plural number of CJK characters and whitespaces so that they are justified within a specific number of ems, for example, 2 or 3 characters within 4 ems; typically used for titles and headers

pre-wedding photography

ignorance is bliss

complete denial of knowing (an incident in question)

to know through one's own experience

to have no way of knowing; to be completely ignorant of

to make known

(Classical Japanese, archaic, honorific) to know

God only knows