TIS

2-letter words 4

• itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
• ishave the quality of being; (copula, used with an adjective or a predicate noun)
• sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
• tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite