Hallie -- it rhymes with alley and is not to be confused with Halle or Hailey or Holly -- is one of those comfy nicknamish names that are in favor in these complicated times.

Sonny is one of the generic boy nickname names making a surprise reappearance, and it was recently used by actor Jason Lee. Another surprise: It's been on the US Top 1000 list every year since 1927, and as of 2023, it entered the Top 400 for the first time. Laidback Sonny is also popular in the UK, New Zealand and Australia.

Rosy-cheeked and cheery, Rosie (also spelled Rosy) has been standing on her own for many decades, back to the days of 1943 musical Sweet Rosie O'Grady. She's one of the perky nickname-names that are filling the popularity lists of other English-speaking countries. In the US, she came back to the Top 1000 in 2013, after a 30 year hiatus. In 2023, Rosie was one of the fastest rising girl names.

Sweet and sunny but substantial too, Callie is a nickname-style choice that has long been used as a stand-alone option . Traditionally a diminutive of classic Caroline, it may also be used for Calliope, Camila, Callista, Calanthe, and beyond.

Cole -- a short name that embodies a lot of richness and depth -- has long been associated with the great songwriter Cole Porter. It's quite popular in Scotland.

Billie is a tomboy nickname name, part of the growing trend for using boyish nicknames for girls and now destined for stardom along with its most famous contemporary bearer, music sensation Billie Eilish.

Bonnie is an adorable nickname name, heading back up the popularity list after a 50-year nap. A Top 100 girls' name throughout the rest of the English-speaking world, Americans are later to jump on the Bonnie bandwagon but now it's trending here too.

Harry is the medieval English form of Henry, which derived from the Germanic name Heimrich, meaning "estate ruler." Harry was the nickname of all eight King Henrys; it is also a diminutive of Harold and Harrison.

A Top 10 name from the 1880s until the 1920s, Frank has been falling for decades but last year reversed course for the first time in a century, edging up the popularity list a few notches. And Frank still has a certain warm, friendly real-guy grandpa flavor that could come back into style, like other such choices as Jake and Jack.

Retro short form of Marina, now dated to the era of the Hitchcock movie that made it famous. In the UK, it's one of the hottest vintage names of the moment, perhaps inspired by British singer Lily Allen, who gave it to her second daughter in 2013. It's also a character name on the hit TV show Girls.

A top ranking choice in England and Wales, making frequent appearances on the Telegraph Announcments, Rafe feels equal parts rugged, amiable, and posh. Traditionally seen used a variant of Ralph (itself from the Old Norse Ráðúlfr), it came into use in the 17th century to reflect this particular pronunciation.

Teddy is in some ways one of those midcentury boys' nicknames -- like Jimmy or Bobby or Billy -- yet because it was never that popular, it feels timeless too. The preferred short form of Theodore these days may be Theo and of Edward may be....Edward, but Teddy can work adorably for either and grows up to Ted. And of course, let's not forget the inevitable teddy bear.

Annie is one of the most open and optimistic, the-sun'll-come-out-tomorrow type of name, having been celebrated over the years in song (Annie Laurie), comic strip (Little Orphan Annie), folklore (Annie Oakley, born Phoebe), and film (Annie Hall). It strikes a nice old-fashioned-but-jaunty chord that still has appeal, but we do suggest that you consider putting a more formal version on her birth certificate.

A favorite in England and Wales where nicknames as given names are very much the norm, Tilly has the potential to catch on in the US, given its similarity to the popular Lily and Ellie and the rising stars Millie, Billie, Kallie, and Nellie.

Everything ella, from Ella to Bella to Arabella, is red hot right now. Bella is one of the most, well, beautiful girl names starting with B. It carried a hint of a nice Old World grandmotherly veneer, until it became attached to Twilight's Bella Swan.

Sweet and spirited, kindly and handsome, posh and approachable, Toby is a versatile nickname, popular in the UK as a stand-alone choice, but familiar in the Netherlands and New Zealand too. In the US, it had its heyday in the 70s but has since been outranked by long form Tobias.

Cute kid with freckles, bouncing a Spalding ball. Cool couple Helena Bonham Carter and Tim Burton put the name Billy Burton on their son's birth certificate. While the classic William, name of the future king of England, may in fact be German, the nickname Billy along with such other classic short forms as Jim and Joe are authentically English names for boys.

To some, Nancy is a sweet, sparkly, vintage choice with plenty of energy and style. For it strays too much into '"old-lady" territory to be cool again yet. It's out of fashion in France, New Zealand, and Canada; it lingers towards to bottom of the US charts. In the UK however, Nancy has been a Top 100 name for nearly a decade where it fits right in with Evie, Mabel, and Pippa.

Upbeat nickname-name that can't help but make you smile. You might want to use it as a short form for a more "serious" name such as Sunniva, but Sunny is undeniably, well, sunny.

The cool form of James in the 1970s and '80s for both sexes. Still a more stylish short form than Jimmy, though many parents will want to call James by his entire, not-very-long name.