The letter <w> functions as a vowel only in the digraphs <aw>, <ew>, and <ow>, and the vowel trigraph <iew>. Here are the 31 words from CommonWords with the <aw> vowel digraph: awe, awful, awfully, awkward, bawl, claw, crawl, dawn, draw, drawer, drawing, drawn, fawn, gnaw, hawk, jaw, law, lawn, laws, lawyer, lockjaw, paw, pawn, raw, saw, straw, strawberry, withdraw, withdrawal, withdrawn, yawn.
Here are the 38 CommonWords with the vowel digraph <ew>: blew, chew, crew, dew, drew, few, fewer, flew, grew, hew, Jew, jewel, jewelry, Jewish, knew, nephew, new, New Hampshire, New Jersey, New Mexico, New York, newcomer, newly, news, newspaper, renew, renewable, renewal, screw, sew, sewer, sewing, shrewd, slew, stew, steward, threw, withdrew
Three CommonWords have the vowel trigraph <iew>: interview, review, view.
Here are the 137 CommonWords with the vowel digraph <ow>:
acknowledge, allow, allowance, allowed, anyhow, arrow, bedfellow, bellow, below, bestow, blow, borrow, borrower, bow, bower, bowl, brow, brown, burrow, chow, cow, coward, cows, crow, crowd, crowded, crown, down, downstairs, downward, dowry, drown, drowsy, elbow, endow, escrow, eyebrow, fellow, flow, flower, flowers, follow, follower, following, follows, fowl, frown, glow, gown, grow, growl, grown, grows, growth, hollow, horsepower, how, however, howl, hydropower, jowl, know, knowing, knowledge, known, low, lowbrow, lower, lowercase, lowest, lowland, marrow, meadow, mellow, meltdown, Moscow, narrow, now, nowadays, overflow, overthrow, overthrown, owe, owing, owl, own, owner, pillow, plow, powder, power, powerful, powers, rainbow, renown, renowned, row, rows, scowl, shadow, shadowy, shallow, show, shower, showers, showing, shown, slow, slowly, snow, snowman, snowy, somehow, sorrow, sow, sown, sparrow, swallow, throw, thrown, tomorrow, towel, tower, town, towns, unbowed, unknown, vow, vowel, well-known, widow, willow, window, windows, wow, yellow, Yorktown