bur

noun 0.686

burb

noun 0.669

burh

noun 0.649

burrow

noun 0.646

burl

noun 0.641

burin

noun 0.629

burp

noun 0.604

churr

noun 0.597

burrito

noun 0.583

bora

noun 0.574

bury

noun 0.574

whirr

noun 0.571

bure

noun 0.566

bore

noun 0.564

birk

noun 0.552

chirr

noun 0.552

bursa

noun 0.551

hurly

noun 0.551

burble

noun 0.549

boor

noun 0.549

burro

noun 0.548

berm

noun 0.548

burping

noun 0.547

burger

noun 0.546

burley

noun 0.544

murmur

noun 0.542

buck

noun 0.539

burrower

noun 0.538

bursicon

noun 0.536

drill

noun 0.536

burrowing

noun 0.533

purr

noun 0.532

gurdy

noun 0.530

briar

noun 0.528

burdock

noun 0.526

boring

noun 0.525

ber

noun 0.522

belch

noun 0.522

barrow

noun 0.522

whirring

noun 0.521

husk

noun 0.521

birch

noun 0.521

bristle

noun 0.520

bor

noun 0.519

bull

noun 0.518

borer

noun 0.518

borage

noun 0.518

buller

noun 0.517

cocklebur

noun 0.517

burse

noun 0.517

bertha

noun 0.516

baffle

noun 0.516

birr

noun 0.516

fur

noun 0.515

bun

noun 0.515

grind

noun 0.514

harr

noun 0.514

bulgur

noun 0.513

berry

noun 0.512

murre

noun 0.512

turd

noun 0.511

borough

noun 0.509

barf

noun 0.509

bumble

noun 0.508

butterbur

noun 0.508

hurley

noun 0.508

churn

noun 0.508

umber

noun 0.508

buzz

noun 0.508

burn

noun 0.507

bullet

noun 0.507

bur oak

noun 0.507

gurgle

noun 0.507

burgher

noun 0.506

barb

noun 0.506

buster

noun 0.506

butter

noun 0.505

blurt

noun 0.505

burden

noun 0.505

bitter

noun 0.504

chirp

noun 0.503

burgh

noun 0.503

berberis

noun 0.502

shiver

noun 0.502

buzzard

noun 0.502

bulla

noun 0.502

burying

noun 0.501

whirly

noun 0.501

bark

noun 0.501

burster

noun 0.501

chill

noun 0.501