19-letter words containing h, i, t, c, y
- telephone directory — a book, directory, or the like, usually containing an alphabetical list of telephone subscribers in a city or other area, together with their addresses and telephone numbers.
- the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
- theoretical physics — abstract use of physics
- to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
- to click your heels — If someone such as a soldier clicks their heels, they make a sound by knocking the heels of their shoes together when saluting or greeting someone.
- trickle-down theory — an economic theory that monetary benefits directed especially by the government to big business will in turn pass down to and profit smaller businesses and the general public.
- typographical error — an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like.
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves.
- what-do-you-call-it — whachamacallit.
- with flying colours — If you pass a test with flying colours, you have done very well in the test.