'Th' definitions:
Definition of 'Th'
From: WordNet
noun
The fifth day of the week; the fourth working day [syn: Thursday, Th]
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 [syn: thorium, Th, atomic number 90]
Definition of 'Th'
From: GCIDE
- Th \Th\ 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. [1913 Webster] Thack