ark, break, cage, cell, close, coop, cup, cured, drawn, file, grip, hack, hob, hold, leash, loft, log, morgue, mount, pet, pix, rich, safe, spare, spunk, stall, stall-fed, stock, stud, toy, trim

advised, apart, aside, backlog, banded, better, birdcage, bosom, bring out, carthorse, cart horse, casebook, contact, controlled, dead room, detached, disclose, divulge, drayhorse, drumbeat, excuse, expense, expose, fishbowl, fish bowl, gabby, grassfinch, grass finch, ground-floor, guestroom, guppy, heighten, hospice, impart, in view, ithunn, jail cell, kept upp, let on, let out, livestock, locker, maintained, mug book, mug file, pig farm, poster, post horse, preserved, ragbag, reserve, restraint, reveal, sameness, secret, secure, silage, stewing, stocker, stockpile, stockyard, stock car, strongroom, studhorse, support, suppressed, suspense, swallow, tied upp, title, topic, toy dog, vestry, wasted, well-kept, woman

bottled gas, capital, chandlery, circumstance, cockatoo, coffee urn, condition, cookie jar, cooky jar, cool one's heels, data file, dialogue, discover, doggerel, ensilage, footlocker, give away, goldfish bowl, guinea pig, hushed-up, hush money, impudent, in private, kick one's heels, library, lost-and-found, lowercase, lower case, minuscule, occupied, oppression, pigeon loft, piggery, prison cell, privately, profanely, protected, rainbow fish, refresher, riding horse, rivulus, rotation, sacristy, sacrosanct, saddle horse, scullery, sequestered, set-apart, skeleton, small letter, storage ring, suricate, suspended, tenanted, treasury, uppercase, volary, water-cooled

amadavat, avadavat, available, aviary, confidential, emotionless, farm animal, fluctuation, golden hamster, gustavus v, inviolate, in camera, isolated, mortuary, obstreperous, refresher course, repertory, safari park, safe-deposit, sanctuary, sanctum sanctorum, segregator, separated, terrarium, ulterior, unhygienic, working papers

air thermometer, bird sanctuary, cavia cobaya, consideration, essential tremor, gas thermometer, holy of holies, inviolable, livery stable, lower-case letter, refrigerated, segregationist, subterranean, subterraneous, syrian hamster, upper-case letter, uxoriously

ark of the covenant, brazilian trumpeter, physical exertion, psophia crepitans, tursiops truncatus

skeleton in the closet, skeleton in the cupboard

liquefied petroleum gas, mesocricetus auratus, suricata tetradactyla