Most Bills today are dads...or grandpas. The younger Williams are usually nicknamed Will, or called by their full names.

A surprise recent hit revival with cutting-edge British, Tribeca and Malibu parents; Tillie, also spelled Tilly, is cute, frilly, and sassy all at once. Tilly is currently Number 90 on the England-Wales popularity list, joining such other Top 100 nickname names as Milly, Maisie, Kitty and Lottie. Tillie along with these other short forms transform proper names rooted in other cultures into true English names for girls.

With its bubbly sounds and stylish feel, Pepper joins a small but distinctive group of names inspired by the spice rack: Saffron, Juniper, Cassia, Sage, Ginger, and Rosemary. Enough like Pippa, Piper and Penelope that it feels usable, Pepper has appeared every year in the US stats since the 60s.

This number name first came to public attention when Erykah Badu and Andre 3000 chose if for their son, Seven Sirius Benjamin, born in 1997. Over a decade later, David and Victoria Beckham used it as their daughter's middle name, and now in these days of unisex word names, it's rising for both sexes. It's certainly one of the most name-like numbers: after all, it's only a letter away from Steven.

This is a multi-syllabic New Testament relic that could be yet another fresh way to get to Theo. In the beginning of Luke's gospel, he dedicates his words to Theophilus.

Dinah is a charming, underused Old Testament name with a rich literary and musical resume. In the Old Testament, Dinah was the beautiful daughter of Jacob and Leah and while some conflate her with the Biblical Adinah, they are in fact different figures.

Hart could be the hero of a romantic novel, but on the other hand, it's short, straightforward, and strong sounding. The most famous bearer of the name was tragic poet Hart (born Harold) Crane, but it also has musical cred via Lorenz Hart, of the classic Rodgers & Hart songwriting duo and a literary tie to playwright Moss Hart.

Corwin is an upstanding surname name that has been seen occasionally as a first in literature, but rarely in real life. But maybe with the recent acceptance of Darwin, that might change.

Along with August, March is one of the month names perfectly suited to boys. This brisk single-syllable name – which derives from the name of Mars, the Roman god of war – is worth considering as either a first or middle option. As a surname, it brings warm memories of the girls of Little Women, and of twentieth century actor Fredric.

Similar in sound to Harley, Marley, and Arlo, this surname-style name is familiar in Brazil and a Top 1000 choice in England and Wales. Pronounced as AHR-lee in English and ahr-LAY in Latin America, it may be a habitational name, relating to rabbits, hares, or eagles, depending on what Old English root you follow, though it may also relate to the names Arlette, Arleth, and Arlington, lending it the meaning "noble".

An old English redhead name -- one of the few that doesn't begin with the letter r -- with references both to a famous French knight and a magical horse. Civil Rights leader Bayard Rustin is a contemporary bearer of this unusual and evocative name.

King is a name that sends a mixed message. While some might think of it as more fitting for a canine, others see it as a strong name with offbeat style and a full court of rich associations, from Dr. Martin Luther King Jr. to Elvis.

King Vidor was an important early Hollywood director; King Camp Gillette invented the safety razor.

If it's king names you're after that aren't King itself, see our list of Names with Royal Meanings or other lists and blogs on royal names.

Yes, though it seems so extreme, girls were actually sometimes given this name a century ago; now it is so uncommon it would make a strong springtime statement. Biggest obstacle: the nickname Daffy.

Bunny may be adorable, but is it really enough of a name for your daughter? Plus if Buffy is fluffy, what would that make Bunny?

Five is a number name introduced to the lexicon by famous crazy baby namers The Novogratz Family. Five is, yes, their fifth child, who happens to be a boy, but there's no reason Five -- and Seven and Eleven -- can be unisex baby names.

Sweet and frilly but with a surname-feel, Lacie is a spelling variation of Lacey. It rose up the charts in the US back in the 1980s and then in the UK in the 2000s and 2010s, following in the footsteps of its more popular form. Usually said to derive from the name of a town in Normandy, Lacie is occasionally considered a diminutive of Wallace or Larissa too.

This name was consistently in the boys' Top 200 until WW2. It's a name with so many dimensions to it: the hyper-masculine meaning, the surname-as-firstname trendiness, and the softer sound and connotation since homophone Carol was favoured in the 1940s and '50s for daughters. We think it's time for a resurgence of Carrolls amongst the boys.

Pansy is an early floral name that lost credibility when it became a derogatory slang term for gay people. Better these days: Posy or Poppy.

Panya is a multicultural possibility with a sound that's pleasing to the English-speaking ear, though the Swahili translation, which might also be "rat," makes it less than savory as an African name.

Dodo is one of the few names of the cute repeating-sounds genre that is not alas so cute, being a slang word for someone brainless as well as the name of the infamous extinct bird. Dot, Dottie, Dory, or Thea are all preferable.