Subcategories:
— [noun] (37)
— [adjective] (105)
— [adverb] (13)
— escape observation [verb (intransitive)] (11)
— keep from knowledge [verb (transitive)] (75)
— keep quiet about [phrase] (18)
— under cover [preposition] (1)
— keeping from publication (91)
— hidden or indirect meaning (90)
— indirect action or process (38)