12-letter words containing h, y, d, a, t, i
- see daylight — the light of day: At the end of the tunnel they could see daylight.
- shasta daisy — any of several horticultural varieties of Chrysanthemum superbum, having large, white, daisylike flowers.
- synadelphite — an arsenate containing manganese and aluminium
- synarthrodia — synarthrosis.
- thank kindly — to thank heartily
- thioaldehyde — any of a class of compounds formed by the action of hydrogen sulfide on aldehydes, and regarded as aldehydes with the oxygen replaced by sulfur.
- typhoid mary — Mary ("Typhoid Mary") 1869?–1938, U.S. cook, born in Ireland: known immune carrier of typhoid fever who infected many with the disease, institutionalized in 1914.
- winter-hardy — able to survive the effects of cold weather.