The two nickels refer to the Roman numeral "V," which represents five. When you combine two "V"s, you get "VV." However, the intended answer to the riddle is likely the word "coin," as the two nickels represent two coins.
two nickels make one dime!
Dime
10 cents, but it also makes two shiny coins. Two nickels make up the value of a dime.
You will need 40 nickels to make $2
two quarters, two nickels and two penniestwelve nickels and two penniessixty two penniesone half dollar, two nickels and two pennies
dime
a ladder of words
One seven letter word, One two letter word and a five letter word, One three letter word and a four letter word, One three letter word and two two letter words, Two three letter words, Three two letter words, A two letter word and a four letter word, A six letter word, A two letter word and a three letter word, A five letter word, Two two letter words, A four letter word, A three letter word, or A two letter word.
Seven dollars and 95 cents
10 sense
two dimes and two penniesone dime, two nickels, and two pennies
You can add the letter 'O' to the beginning to make the two-syllable word open.