th Meaning, Definition & Usage
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noun the fifth day of the week; the fourth working day
Thursday.
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noun a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
atomic number 90; thorium.
WordNet
Th
Definitions
In Old English, the article the, when the following word began with a vowel, was often written with elision as if a part of the word. Thus in Chaucer, the forms thabsence, tharray, thegle, thend, thingot, etc., are found for the absence, the array, the eagle, the end, etc.