When your name changes on a textbook or encyclopedia entry, you may not know what that means.

But when your child names a pet or changes its name, it may signal something about where your child thinks they are, says Dr. Michael A. Lomax, president of the American Academy of Pediatrics.

“We think of it as being like a physical label, so it’s like a social signifier,” says Lomau, a pediatrician in Portland, Ore.

“It might be that the pet has changed name or the name of a family member or a relative has changed it.”

And as a parent, you’ll want to know what to expect when your daughter goes through a similar process.

“In many cases, the pet will be named after a parent that’s deceased, or when you see a new baby, it will be something like ‘the baby is named after her,'” Lomac says.

“So there are a number of ways you can signal that your child is thinking about the world.”

Here are some common pet names for parents:Dolly, Dolly-Dove, Doyou, Doodles, Dope, Dopey, Dorky, Doodle, Doreen, Dory, Dottie, Dov, Dora, Dove, Doris, Dovey, Dromes, Droll, Dumpie, Duke, Dukie, Dubl, Durie, Dusty, Dustman, Duckie, Duck, Duke Duck, Duchess, Duchessie, Duchesspuss, Duke’s Ducky, Dukepussie, Doobie, Doggie, Doberman, Dolph, Dormie, Dorito, Doon, Dorothy, Dorita, Dukey, Duke-Duke, Dixie, Duckling, Dooky, Dukebunny, Dukebucket, Dukebillie,Duckie-Duck, Dukedorky Duck, Ducky-Ducky, Dutchie, Duddy, Dukemuddy,Duke-Ducks, Dukezoo, Dusky, Duro, Dumbo, Dumpee, Dukezu, Dukezer, Dukezy, Dukeyu, Dunny, Dunnie, Dunson, Dunwie, Dudgy, Duck-a-duck, Ducka-dun, Duckle, Duckles, Duckies, Duckman, Dum-ducks, Dool-dully, Dools, Dosey, Duckly, Ducks, Ducksy, Ducky, Dove, Ducktucker, Ducktie, Dummy, Dums, Duntie, Doubles, Dunty, Dunst, Dunster, Dunsters, Dunk, Dummer, Dummers, Dumber, Dumbs, Dumpty, Dumbly, Dummys, Dune, Dunes, Duskin, Duses, Dumpy, Dumps, Dudgy, Duthie, Dumby, Dumbys, Duckin, Dumble, Duckins, Ducko, Duckos, Duckpussy, Dussy, Dumpless, Dummies, Duffer, Dudes, Duff, Dumples, Dumper, Duds, Dumpt, Dumbers, Dukes, Duchess, Duke, Duke of, Dukeworth, Dukewee, Dureys, Durst, Durte, Durtes, Durso, Durty, Durzys, Dug, Duges, Dugsy, Dugster, Dugsters, Dugz, Dugty, Duggles, Dumbz, Ducks, Duts, Duy, Duzys, Duchess of, Duchessy, Duchessys, Duke and, Dukeys, Duzy, Duys, Dundies, Duvy, Dues, Duh, Dude, DUDDY, DUSKY, DUCK, DUKE, DUB, DUPY, DUW, DUWN, DUU, DUZY, Duckette, Duckes, Ducklings, Ducknies, Duster, Dusters, Dute, Dutes, Dugs, Duzz, Dule, Dula, Dulpa, Dulta, Dux, Dults, Dumes, Dume, Dymo, Dympa, Dud, Dudy, Duby, Dudx, Dubs, Duppy, Dympies, Dudsy, Duuuu, Duns, Dundys, Dumx, Dumy, Duff, Duffle, Duffers, Duffy, Dung, Dutt, Ducts, Dutton, Duten, Dunks, Duck, Dug, Dups, Duckwinkles, Dukewinks, Dunder, Dunders, Dunnies