9-Letter Words Starting TH & Ending D

• Australian and southeastern Asian birds with a melodious whistling call

• to believe especially on uncertain or tentative grounds

• construct a theory about

• form or construct theories

• A folded membrane within plant chloroplasts from which grana are made, used in photosynthesis

• made or having become thick

• having calluses; having skin made tough and thick through wear

• made thick in consistency

• by doubly indirect means

• derived from what is primary or original by two intermediate steps

• the starting point for a new state or experience

• the smallest detectable sensation

• the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close

• the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway

• a region marking a boundary

• by a factor of three

• three times as great or many

• having more than one decidedly dissimilar aspects or qualities

• probably warm-blooded; considered direct ancestor of mammals

• a deep prolonged loud noise

• a booming or crashing noise caused by air expanding along the path of a bolt of lightning

• street names for heroin

• move fast, noisily, and heavily

• utter words loudly and forcefully

• be the case that thunder is being heard

• to make or produce a loud noise