Page 1: back, jack, black, ack, pack, quack, track, rack, sack, attack, snack, mack, hack, backpack, lack, smack, aback, shack, slack, yack, stack, crack, tack, backtrack, knack, whack, flapjack, quarterback, blackjack, Cossack, comeback, outback, thumbtack, silverback, haystack, barrack, lumberjack, applejack, hijack, throwback, leatherback, payback, horseback, counterattack, clack, setback, flashback, wrack, knapsack, and crackerjack
| Word | Length | Vowels | Syllables | |||
|---|---|---|---|---|---|---|
| Back | 4 | 3 | 1 | 1 | Middle English | |
| Jack | 4 | 3 | 1 | 1 | Middle English | |
| Black | 5 | 4 | 1 | 1 | Middle English | |
| Ack | 3 | 2 | 1 | 1 | ||
| Pack | 4 | 3 | 1 | 1 | Middle English | |
| Quack | 5 | 3 | 2 | 1 | Middle English | |
| Track | 5 | 4 | 1 | 1 | Old French | |
| Rack | 4 | 3 | 1 | 1 | Old English | |
| Sack | 4 | 3 | 1 | 1 | Middle English | |
| Attack | 6 | 4 | 2 | 2 | French | |
| Snack | 5 | 4 | 1 | 1 | English | |
| Mack | 4 | 3 | 1 | 1 | ||
| Hack | 4 | 3 | 1 | 1 | Old English | |
| Backpack | 8 | 6 | 2 | 2 | ||
| Lack | 4 | 3 | 1 | 1 | ||
| Smack | 5 | 4 | 1 | 1 | Middle English | |
| Aback | 5 | 3 | 2 | 2 | Middle English | |
| Shack | 5 | 4 | 1 | 1 | Nahuatl | |
| Slack | 5 | 4 | 1 | 1 | ||
| Yack | 4 | 3 | 1 | 1 | ||
| Stack | 5 | 4 | 1 | 1 | Old Norse | |
| Crack | 5 | 4 | 1 | 1 | Middle English | |
| Tack | 4 | 3 | 1 | 1 | French | |
| Backtrack | 9 | 7 | 2 | 2 | ||
| Knack | 5 | 4 | 1 | 1 | Middle English | |
| Whack | 5 | 4 | 1 | 1 | ||
| Flapjack | 8 | 6 | 2 | 2 | ||
| Quarterback | 11 | 7 | 4 | 3 | English | |
| Blackjack | 9 | 7 | 2 | 2 | ||
| Cossack | 7 | 5 | 2 | 2 | French | |
| Comeback | 8 | 5 | 3 | 3 | English | |
| Outback | 7 | 4 | 3 | 2 | ||
| Thumbtack | 9 | 7 | 2 | 2 | ||
| Silverback | 10 | 7 | 3 | 3 | ||
| Haystack | 8 | 6 | 2 | 2 | ||
| Barrack | 7 | 5 | 2 | 2 | French | |
| Lumberjack | 10 | 7 | 3 | 3 | ||
| Applejack | 9 | 6 | 3 | 3 | ||
| Hijack | 6 | 4 | 2 | 2 | ||
| Throwback | 9 | 7 | 2 | 2 | ||
| Leatherback | 11 | 7 | 4 | 3 | ||
| Payback | 7 | 5 | 2 | 2 | ||
| Horseback | 9 | 6 | 3 | 3 | ||
| Counterattack | 13 | 8 | 5 | 4 | ||
| Clack | 5 | 4 | 1 | 1 | Middle English | |
| Setback | 7 | 5 | 2 | 2 | ||
| Flashback | 9 | 7 | 2 | 2 | ||
| Wrack | 5 | 4 | 1 | 1 | Middle English | |
| Knapsack | 8 | 6 | 2 | 2 | ||
| Crackerjack | 11 | 8 | 3 | 3 |
Suffix: -ack. List of words that end in ack.

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