As the common short form of Zachary or, more unusually, Zachariah, Zack is less intuitive than Zach or Zac in terms of spelling but clearer in terms of pronunciations. Maybe because it rhymes with Jack and Mack, it also feels more complete as a name. Some people also use Zack and brothers as a short form of Isaac.

Friendlier french form of ancient Germanic royal name Amalric or Emmerich.

A Spanish TV show made this one popular, along with single-named Mexican singer, Alondra.

Calum is a form of the boy name Callum, popular in the British Isles and carrying a peaceful meaning.

Kari and all her many sisters, from Carrie to Carey to Kerry and onward, originated for the most part as short forms of either Catherine Katherine or one of the Charles feminizations such as Carol or Caroline.

A cool international name that could join the ranks of cool N-ending boy names. Americans may know it best from retired NFL player Tavian Banks.

One of several more venerable names that get to the nickname Zack if you're tired of Zachary. In the New Testament, Zacharias was the husband of Elizabeth and father of John the Baptist.

Simple, friendly, distinctive name heard in several cultures. The a ending may feel more feminine in the US than Ole, though both variations are acceptable in Scandinavia.

One of the best known of the Irish girls' names, thanks to singer Sinead O'Connor. Though it's still in the Irish Top 100, it's no longer quite as fashionable in Ireland as Aoife or Aisling. But by now everyone in the Western World knows it's pronounced shin-aid and so would have no trouble fitting in on an American playground.

Most contemporary English speakers will hear the name Lyssa as short for the long-popular Alyssa or Melissa. But Lyssa is a bona fide Greek mythology name, though not a very appealing one.

You might want to abbreviate this from one of the Biblical originals or use it as a name all on its own, an update of Sam or Finn. Sim is a Scottish Gaelic form of Simon.

The usage of this Arabic name has been increasing in the US, joining the Top 1000 for the first time in 2015. Aminah bint Wahb was the mother of the Islamic prophet Muhammad.

Eliška is warm and friendly, in the Misha, Sasha mode.

Tico is a diminutive of Alberto, but on the soap opera One Life to Live, Tico Santi's full name was Augustico.

Rafa is an adorable short form introduced to the world by actors Rose Byrne and Bobby Cannavale, who used the name for their second son. Rafael is the Latin cognate of the Hebrew boys' name Raphael, but you don't need to be a Rafael to be a Rafa.

The traditional Irish girl's name Bevin – an Anglicization of Bébhinn – is rarely heard outside the Emerald Isle, but could make an fresh and fashionable namesake for an Aunt Beverly.

Madelina is the Madeline equivalent used in many European cultures. While it's a simple and melodic name, like its mother name it can lead to lots of spelling and pronunciation problems. The first syllable may be "may" or rhyme with dad; last two syllables pronounce lee-na, though of course some will inevitably say lye-na. Only a handful of girls received this name in the US last year, making it a distinctive and pretty classic, but don't choose it ignoring its very real down side.

Whether you pronounce it my-a, ma-zha or ma-ha, Maja is an intriguing choice. Sometimes associated with Goya's famous painting "The Naked Maja." As a cognate of Maya, it's a Top 10 name in Slovenia and Sweden and is also popular in Germany and Norway.

One of the old-school nicknames -- think Ray, Vince, Frank -- that's on the brink of coming back into style. Name him Stanislav or Constantine and he'll have a groovier long form to fall back on.

Tavi has been catapulted into the spotlight by teenage fashion blogger Tavi Gevinson. This cute name, previously not on anyone's scope, could be a way to honor an ancestral David or a short form of the luscious Octavia or could stand as a perfectly stylish name all on its own.