Jim Crow, adytum, alienation, aloneness, aloofness, anonymity, apartheid, apartness, ashram, celibacy, cell, clandestineness, cloister, closed meeting, concealment, confidentiality, confidentialness, covertness, den, detachment, executive session, hermitage, hideaway, hideout, hiding place, holy of holies, incognito, isolation, isolationism, ivory tower, keeping apart, lair, loneliness, loneness, lonesomeness, mew, monasticism, moving apart, private conference, privatism, privatization, quarantine, recess, reclusion, retirement, retreat, rustication, sanctum, sanctum sanctorum, seclusion, secrecy, secret place, secretiveness, segregation, separateness, separation, sequestration, single blessedness, solitariness, solitude, splendid isolation, surreptitiousness, withdrawal