Unit 1 : gram, clash, dense, dread, prank, strict, drill, swan, prod,
shrunk, scuff, clutch, threat, dwell, fund, text, rank, brink, mock, plaid
Review words: stuff, batch,
Challenge words: sense, guest, cleanse
Unit 2: slope, acute, remote, bathe, gaze, rhyme, keen, tile, fuse, bleach,
loan, tote, foal, foe, coax, bleak, cue, pave, meek, shrine
Review words: grasp, dread
Challenge words: shrunk, trait, capsule
Unit 3: reins, freight, siege, yield, review, foreign, shield, ceiling,
retrieve, grieve, sleigh, seize, belief, neither, reign, relieve, niece,
eighty, wield, diesel
Review words: gaze, tile
Challenge words: bleach, receipt, leisure
Unit 4: search, starve, thorn, reward, sparkle, bargain, parched, pursue,
servant, torch, earnest, mourn, fierce, pierce, urge, wharf, court, weird,
veer, burnt
Review words: freight, yield
Challenge words: seize, sphere, aeronautics
Unit 5: heartbeat, northwest, seaweed, eyelid, seashell, twenty-five,
wading pool, nearsighted, brother-in-law, old-fashioned, full-time,
windshield, watermelon, science fiction, self-respect, flashbulb, after-
school, teenager, fingernail, question mark
Review words: fierce, urge
Challenge words: bargain, barbed wire, fire escape
Unit 6: echoes, photos, data, scarves, volcanoes, shelves, media, bacteria,
wolves, dominoes, solos, thieves, wives, cuffs, staffs, buffaloes, sheriffs,
tornadoes, sopranos, loaves,
Review Words: old-fashioned, windshield, question mark
Challenge words: halves, wharves
Unit 7: sloped, stifling, marveled, sipped, encouraged, permitting,
orbiting, credited, labored, patrolling, referred, regretting, totaled,
unraveling, uttered, reviving, glimmering, accused, confiding, hovered
Review words: echoes, shelves
Challenge words: media, interpreted, swiveling
Unit 8: vault, slouch, poise, scrawl, noodle, blouse, boost, sooty, fraud,
sought, scowl, employ, thaw, groove, corduroy, browse, rookie, scoot, avoid,
snoozed.
Review Words: sipped, credited
Challenge words: regretting, drowsy, boisterous
Unit 9: factor, banner, victim, mental, formal, pantry, ballot, prosper,
pumpkin, muffler, ragged, kingdom, barren, necklace, wallet, ponder, funnel,
dwelling, snapshot, fabric
Review Words: blouse, employ thaw
Challenge words: verdict, garment
Unit 10: brutal, secure, panic, cabins, fever, voter, vanish, nylon,
detect, resist, labor, focus, rival, recite, topic, amid, unit, rotate,
vital, lament
Review words: victim, wallet, snapshot
Challenge words: mural, civic
Unit 11: ignore, wealthy, fulfill, healthy, enroll, accept, parchment,
dismay, debate, prepare, repair, applaud, forlorn, shoulder, abroad,
flounder, saunter, falter, install, bounty
Review words: voter, recite, topic
Challenge words: jaunty, cauldron
Unit 12: actor, stroller, scatter, gutter, platter, customer, ancestor,
flavor, mirror, vinegar, bachelor, behavior, calendar, waiter, singular,
maneuver, observer, wander, traitor, janitor
Review words: healthy, accept, prepare
Challenge words: clamor, rescuer
Unit 13: burden, carton, hasten, cable, civil, dwindle, gallon, fumble,
normal, novel, basin, whistle, villain, urban, organ, satin, curtain, peril,
gravel, dangle
Review words: customer, flavor, calendar
Challenge words: vertical, veteran
Unit 14: unknown, incredible, superhuman, prolong, outpost, independent,
incomplete, enlist, enrich, enlarge, superstar, supermarket, outfield,
outlaw, outstanding, outcry, proclaim, uncommon, untangle, unhook
Review words: curtain, cable, gallon
Challenge words: indistinct, unequal
Unit 15: inspire, inspiration, consult, consultation, separate, separation,
illustrate, illustration, instruct, instruction, observe, observation,
react, reaction, connect, connection, hesitate, hesitation, represent,
representation
Review words: incomplete, supermarket, outfield
Challenge words: evaporate, evaporation
Unit 16: admit, admission, permit, permission, explain, explanation,
exclaim, exclamation, include, inclusion, explode, explosion, divide,
division, decide, decision, omit, omission, collide, collision
Review words: separation, instruction, connection
Challenge words: expand, expansion
Unit 17: vocalize, explosive, recognize, passage, storage, modernize,
positive, negative, criticize, organize, creative, realize, advantage,
attractive, percentage, emphasize, wreckage, specialize, sympathize,
secretive
Review words: permission, explanation, decision
Challenge words: progressive, scrutinize
Unit 18: unfairness, disgraceful, unsuccessful, outlandish, outsider,
discouragement, incorrectly, enforcement, reminder, enclosure, unselfish,
delightful, unevenly, disapproval, disappointment, repayment, designer,
unhappiness, enjoyment
Review words: passage, positive, realize
Challenge words: displeasure, informal
Unit 19: compete, competition, metal, metallic, final, finally, nation,
national, moment, momentous, crime, criminal, reside, resident, origin,
original, ignite, ignition, refer, reference
Review words: incorrectly, departure, unhappiness
Challenge words: acquire, acquisition
Unit 20: crumb, crumble, design, designate, solemn, solemnity, muscle,
muscular, reject, rejection, create, creation, public, publicity, prejudice,
prejudicial, magic, magician, office, official
Review words: competition, criminal
Challenge words: resident, complicate, complication
Unit 21: lesson, lessen, aisle, isle, I'll, navel, naval, pane, pain,
miner, minor, vain, vane, vein, principal, principle, idle, idol, sheer,
shear
Review words: crumble, rejection, publicity
Challenge words: hanger hangar
Unit 22: audience, benefit, factory, flexible, reduce, credit, dictionary,
section, incredible, structure, insect, audio, introduce, prediction,
destruction, education, inject, reflection, objection, dejected
Review words: lessen, aisle, principle
Challenge words: manufacture, dictate
Unit 23: aerial, aerospace, autobiography, paragraph, biography, biology,
diagram, microwave, hydrant, grammar, catalog, thermometer, microscope,
microphone, chronic, program, hydrogen, dialogue, thermal, symphony
Review words: credit, dictionary, principle
Challenge words: graphic logical
Unit 24: terrible, impossible, valuable, noticeable, considerable,
available, horrible, believable, audible, predictable, remarkable,
reversible, changeable, reliable, acceptable, probable, admirable,
dependable, profitable, lovable
Review words: biography, microphone, program
Challenge words: eligible, legible
Unit 25: experience, evident, persistent, intelligent, defiance, constant,
violence, permanent, president, incident, important, excellent, fragrance,
acquaintance, conference, disappearance, occurrence, nuisance, observant,
hesitant
Review words: terrible, noticeable, profitable
Challenge words: elegance, diligent
Unit 26: co-worker, commission, transformation, proportion, cooperate,
intersection, profession, transparent, submit, interrupt, postpone,
companion, submarine, postwar, transform, suburb, combine, interfere,
transfer, copilot
Review words: experience, intelligent, persistent
Challenge words: profound, subscribe
Unit 27: immigrate, impatiently, accompany, announce, arrive, collect,
arrest, irregular, illuminate, accommodate, collaborate, immature, suffix,
illogical, immigration, suppress, illegal, support, correspond, assembly
Review words: cooperate, profession, suburb
Challenge words: impractical, suffocate
Unit 28: democrat, democracy, physician, zoology, telepathy, sympathy,
technology, biologist, pianist, geologist, musician, ecology, apology
politician, tourist, heroism, technician, novelist, archaeology, specialist
Review words: announce, collect, illegal
Challenge words: electrician, mythology
Unit 29: iris, nectar, cosmetics, chaos, solar, geography, mania, titanic,
romance, geometry, helicopter, nocturnal, psychology, phobia, terrain,
amnesia, tantalize, hygiene, mercury, marathon
Review words: musician, democracy, sympathy
Challenge words: lethal, hypnotize
Unit 30: bazaar, bronco, sombrero, caribou, denim, gong, plaza, igloo,
pizza, barbecue, canoe, chocolate, pajamas, plateau, poodle, apricot,
balcony, yacht, cruise, ballet
Review words: solar, geography, marathon
Challenge words: gondola, kindergarten
