close adhesion; sticking firmly (to); relating closely (to); having relevance (to); contact printing
spy; secret agent; spying
crowding together; clustering together; close formation; swarm
close (relationship, connection, etc.); intimate; near; being in close proximity; being adjacent
anonymous report; (secret) information; tip-off; informing (against)
secret meeting; clandestine meeting
shutting tightly; making airtight; sealing hermetically
stowing away; smuggling oneself; clandestine travel abroad
esoteric Buddhism; Tantric Buddhism; Vajrayana; secret Buddhist teachings; Mikkyō
locked-room murder (e.g. in murder mystery fiction)
growing thickly; growing densely
sealing hermetically; sealing (up)
close coverage (of an event, celebrity, etc.); close reporting; total coverage
informer; informant; betrayer; snitch
adultery; illicit intercourse; secret communication (e.g. with the enemy)
community-based; local-based
sealed-type; enclosed; hermetic; closed; closed-back (headphones)
secret order of the Emperor; confidential imperial command
private funeral; secret burial
tip-off; informing secretly; reporting secretly
prowling (without being noticed); patrolling in plain clothes; traveling in secret
lover (of a married woman)
close coverage reportage; close reporting
stopping tightly; sealing hermetically
person who socializes with gangsters; close associate of an organized criminal group
tantrism; esoteric Buddhism; Shingon sect
violence behind closed doors; domestic violence
contact print; contact sheet
locked room trick (esp. in mystery fiction); closed room trick
confidential report to the ruler of the country of astronomical events and their astrological interpretation