crater

noun 0.675

crater lake

noun 0.660

volcano

noun 0.649

supervolcano

noun 0.637

cauldron

noun 0.617

active volcano

noun 0.589

lava dome

noun 0.577

caldarium

noun 0.577

canyon

noun 0.575

krater

noun 0.574

shield volcano

noun 0.562

cavern

noun 0.561

impact crater

noun 0.558

cale

noun 0.556

dormant volcano

noun 0.556

cal

noun 0.548

geyser

noun 0.548

cratering

noun 0.541

volcanic

noun 0.540

stratovolcano

noun 0.539

lava

noun 0.538

cave

noun 0.537

cordillera

noun 0.536

mud volcano

noun 0.536

calla

noun 0.534

sinkhole

noun 0.533

hot spring

noun 0.529

calabash

noun 0.529

calvaria

noun 0.528

fumarole

noun 0.528

calva

noun 0.527

laccolith

noun 0.524

calf

noun 0.523

scoria

noun 0.522

rift valley

noun 0.521

magma

noun 0.521

valley

noun 0.515

crag

noun 0.513

calorimeter

noun 0.512

boiler

noun 0.508

caliber

noun 0.508

caver

noun 0.507

calyx

noun 0.507

thermokarst

noun 0.506

cavity

noun 0.506

calk

noun 0.505

eruption column

noun 0.505

pluton

noun 0.505

lagoon

noun 0.504

kettle

noun 0.501

basin

noun 0.501

caul

noun 0.500