ao

contraction of a (“to”) + o m sg (“the”)

masculineforms nouns, from nouns denoting things, meaning “big thing,” usually but not necessarily with the same gender

masculineused to refer to things affectionately

masculineforms nouns, from nouns, implying that the suffixed noun is powerful or good

masculinein nouns that are formed from, or homonymous with, an adjective, it augments the quality expressed by the adjective

masculineforms the masculine of animal names (whether the animal refers to females or to males and females)

masculineforms nouns, from nouns, denoting an item of the same class as the suffixed noun, or which shares a characteristic with the suffixed noun

masculineslangforms nouns, from a numeral X divisible by ten and greater than thirty, meaning “someone in his Xs”

masculineforms nouns, from a verb X, meaning a strong or violent instance of doing X

informalforms the augmentative of adjectives, roughly equivalent to English quite

masculineforms adjectives, nouns and proper nouns referring to a location or type of location, meaning “of or relating to that location” and nouns meaning “someone from that location”

Portugalmasculine-on (forming nouns denoting subatomic particles)

forms the third-person plural future indicative, from the infinitive of verbs

pre-reform spelling (used until 1943 in Brazil and 1911 in Portugal) of -am; now a common misspelling