| BACKUPS | • backups n. Plural of backup. • back-ups n. Plural of back-up. • BACKUP n. a substitute, a standby. | 
| BREAKUPS | • breakups n. Plural of breakup. • break-ups n. Plural of break-up (alternative spelling of breakups). • BREAKUP n. the act of breaking up. | 
| CHECKUPS | • checkups n. Plural of checkup. • check-ups n. Plural of check-up. • CHECKUP n. an examination. | 
| COCKUPS | • cockups n. Plural of cockup. • cock-ups n. Plural of cock-up. • COCKUP n. a turned-up part of something. | 
| CRACKUPS | • crackups n. Plural of crackup. • CRACKUP n. a mental breakdown. | 
| FUCKUPS | • fuckups n. Plural of fuckup. • fuck-ups n. Plural of fuck-up. • fuck␣ups n. Plural of fuck up. | 
| HOOKUPS | • hookups n. Plural of hookup. • hook-ups n. (Colloquial) A pair of miniature valves right next to each other on a wall, connecting through the wall… • HOOKUP n. an electrical assemblage. | 
| KICKUPS | • kickups n. Plural of kickup. • KICKUP n. a noisy argument. | 
| LINKUPS | • linkups n. Plural of linkup. • LINKUP n. something that serves as a linking device. | 
| LOCKUPS | • lockups n. Plural of lockup. • lock-ups n. Plural of lock-up. • LOCKUP n. a jail. | 
| LOOKUPS | • lookups n. Plural of lookup. • look-ups n. Plural of look-up. • LOOKUP n. the process of looking something up. | 
| MARKUPS | • markups n. Plural of markup. • mark-ups n. Plural of mark-up. • MARKUP n. the difference between a wholesale and retail price. | 
| MOCKUPS | • mockups n. Plural of mockup. • mock-ups n. Plural of mock-up. • MOCKUP n. a full-sized model. | 
| PICKUPS | • pickups n. Plural of pickup. • pick-ups n. Plural of pick-up. • pick␣ups n. Plural of pick up. | 
| STACKUPS | • stackups n. Plural of stackup. • STACKUP n. an arrangement of circling airplanes over an airport waiting to land. | 
| STICKUPS | • stickups n. Plural of stickup. • STICKUP n. (colloquial) a robbery at gunpoint. | 
| WALKUPS | • walkups n. Plural of walkup. • walk-ups n. Plural of walk-up. • WALKUP n. an apartment house with no lift. | 
| WORKUPS | • workups n. Plural of workup. • WORKUP n. an intensive diagnostic study. |