There is a total of 31390 clues beginning with on
- One of 16 on a board
- One of 16 on a chessboard
- One of 16 popes
- One of 16 won by "30 Rock"
- One of 16 works by Brahms
- One of 163 in the Burj Khalifa
- One of 17 Across
- One of 17 in a haiku
- One of 17 in Monopoly
- One of 17 in Monopoly (Abbr)
- One of 17 in Monopoly: Abbr
- One of 17 in New Orleans
- One of 17 Monopoly properties
- One of 17 Monopoly properties: Abbr
- One of 17 Monopoly props
- One of 17 on a Monopoly board: Abbr
- One of 17 properties on a Monopoly board
- One of 17 spaces on a Monopoly board
- One of 17 won by 60-Across
- One of 17-, 18-, 37-, 60- or 62-Across
- One of 170 on a trireme
- One of 18
- One of 18 Across
- One of 18 at St Andrews
- One of 18 French kings
- One of 18 in "The Raven"
- One of 18 in golf
- One of 18 kings
- One of 18 on a course
- One of 18 on a disc golf course
- One of 18 on a golf course
- One of 18 on an 18-wheeler
- One of 18 rois
- One of 18
- One of 1959's best movies
- One of 2,075 brides or grooms at Madison Square Garden on 7/1/82
- One of 2,297 for Hank Aaron
- One of 2,297 for Hank Aaron, in brief
- One of 2,297 for Hank Aaron: Abbr
- One of 2,400-plus in the US
- One of 2,579,000 members
- One of 22 million in Yellowstone
- One of 25 million Japanese
- One of 27 million Japanese
- One of 20 Across
- One of 20 digits
- One of 20 featured in this puzzle
- One of 20 for a bear
- One of 20 for an icosahedron
- One of 20 in "Hamlet"
- One of 20 in a book
- One of 20 in a book, typically
- One of 20 in a napoleon
- One of 20 in a pack, for short
- One of 20 in many books
- One of 20 on the Titanic
- One of 20 pack items, for short
- One of 20 pack items, informally
- One of 20 quadrillion worldwide, per a recent estimate
- One of 20 standing in the House
- One of 20-30 "genius grants" awarded annually
- One of 200 at the Indianapolis 500
- One of 200 at the Indy 500
- One of 200 in the Indy 500
- One of 2011's Daytime Emmy Lifetime Achievement Award winners
- One of 2020's front-line heroes
- One of 21 Across
- One of 21 for Meryl Streep
- One of 21 on a die
- One of 21 popes
- One of 22 Across's players
- One of 22 at Alcatraz
- One of 22 cards
- One of 22 for Jon Stewart
- One of 22 for U2
- One of 22 for Walt Disney
- One of 22 in a Krugerrand
- One of 22 in a Monopoly set
- One of 22 in Paramount's logo
- One of 23 for Matt Stairs (an MLB record)
- One of 230,000,000 in India
- One of 231 in a gallon
- One of 24
- One of 24 at Le Mans
- One of 24 Down
- One of 24 for pure gold
- One of 24 game pieces
- One of 24 in a Chaucer book
- One of 24 in a day
- One of 24 in a glucose molecule
- One of 24 in the Elder Futhark
- One of 24 in un giorno
- One of 24 in un jour
- One of 24 nerves
- One of 24 of "24"
- One of 25 under 100 (but not 1, 25 or 100)
- One of 250,000 in 1937's "Snow White and the Seven Dwarfs"
- One of 256 for Pac-Man
- One of 256 in a gal
- One of 26