Meanings

shelter

anonymity

anonymity

to shelter (e.g. a fugitive)

hiding

concealment

anonymous criticism

to shelter a criminal

anonymous partnership

(crime of) harboring a fugitive (harbouring)

privilege (e.g. "attorney-client privilege")

anonymous shipping

secret name

anonymous textboard

anonymization (of data)

request to remain anonymous

ad hoc group formed to commit crimes

confidentiality

concealed materials

hider