know, be aware of, be conscious of

hold dear, love

consider necessary or right, deem indispensable

pay no heed to, set at naught

mystery, secret, confidential, clandestine

consider something or someone below oneself, consider something inferior, despise, disdain

favorable conditions

quietly, privacy, secrecy, keeping a secret, the action of keeping something secret or the state of being kept secret

a confidante

confidant, one in the know of secrets, confidant, secret-keeper

secrecy

hiding secrets, keeping or concealing secrets

acquainted with secret, the one who know the secrets of someone

consider something obligatory