Do you want to add words to your vocabulary quickly? Here is something that comes in handy: Words that end in “ty” in English, will usually (NOT ALL THE TIME) end in “dad” in Spanish. They will also (ALL THE TIME) be feminine nouns.
Examples (Ejemplos):
university: universidad
creativity: creatividad
city: ciudad
relativity: relatividad
pity: piedad
creativity: creatividad
city: ciudad
relativity: relatividad
pity: piedad
and many more!