Ukulele Festival Hawaii. This annual Waikiki festival honors Hawaii's beloved musical instrument. The ukulele is Hawaiiâs best-loved musical instrument, so it makes sense that Ukulele Festival Hawaii is the worldâs largest, attracting enthusiasts from as far away as Italy and Thailand.
The definition of avail is to help or give an advantage. An example of avail is for medication to improve the condition of a sick person. to be of use, help, worth, or advantage (to), as in accomplishing an end: will force alone avail us? Origin of avail.
The definition of vain is  someone or something without value, without force or who is conceited. An example of vain is a promise that someone doesn't intend to keep. An example of vain is an attempt to prune a bush only to have it removed the following day. An example of vain is a person who constantly talks about how good looking they are.