capsize, turtle, turn turtle (verb)

overturn accidentally

"Don't rock the boat or it will capsize!"

wrong-side-out(p), inside-out(p) (adverb)

with the inside surface on the outside

inside out (adverb)

with the inside facing outward

"she turned the shirt inside out"

inside out (adverb)

thoroughly; from every perspective

"she knows this town inside out"

inverted, upside-down (adverb)

being in such a position that top and bottom are reversed

"a quotation mark is sometimes called an inverted comma"; "an upside-down cake"

upside down (adverb)

in an inverted manner

"the box was lying on the floor upside down"

converse (adj)

a proposition obtained by conversion

converse (adj)

of words so related that one reverses the relation denoted by the other

"`parental' and `filial' are converse terms"

converse, reversed, transposed (verb)

turned about in order or relation

"transposed letters"

converse, discourse (verb)

carry on a conversation

top, top side, upper side, upside (noun)

the highest or uppermost side of anything

"put your books on top of the desk"; "only the top side of the box was painted"

flip, flip over, turn over (verb)

turn upside down, or throw so as to reverse

"flip over the pork chop"; "turn over the pancakes"