hold the key



hold the key

to provide the explanation for something that you could not previously understand Fiennes, who had been looking for the place for twenty years, became convinced that this road held the key.
See also: hold, key

Common Names:

NameGenderPronouncedUsage
Jeffry['dʒefri]
JelleYEL-lə (Dutch)Frisian, Dutch
VirÁG-Hungarian
Bonaccorso-Italian
Lorenzolo-REN-tso (Italian), lo-REN-tho (Spanish), lo-REN-so (Latin American Spanish)Italian, Spanish
Anong-Thai