There is a total of 5644 clues beginning with ab
- About 4,047 square meters
- About 4,050 square meters
- About 4,200 feet, for the Golden Gate Bridge
- About 42 millimeters, in printing
- About 423 millimeters
- About 40 decibels
- About 40 degrees, for NYC
- About 40 million square centimeters
- About 40% of all insect species
- About 40% of Irish citizens
- About 40% of table salt
- About 40,000 Northerners
- About 40-60 beats per minute
- About 4047 square meters
- About 4050 square meters
- About 42c in Uruguay
- About 44,000 square feet
- About 45 inches, in England
- About 45 miles of it touch Canada
- About 45% of the dictionary
- About 450 million people
- About 45c in Addis Ababa
- About 460 inches of rain per year, on Kauai's Mt Waialeale
- About 4800 square yards
- About 49% of adult Americans
- About 49% of the world's population
- About 5 1/2 points
- About 5 million years ago
- About 5 mL
- About 5 ml
- About 5% of Europe
- About 5% of the earth's crust
- About 5% of the world's population
- About 5, for coffee
- About 5,280 ft, for Denver
- About 55 million Europeans
- About 588 trillion mi
- About 59 trillion mi
- About 5/8 of a mi
- About 50% of calls
- About 50,000 Canadians
- About 500 pounds of cotton
- About 500 sheets of paper
- About 500,000 sq mi in Asia
- About 500,000 sq mi of sand
- About 50c, currently
- About 525 trillion minutes, in astronomy
- About 57 degrees, mathematically
- About 57% of American college students
- About 5700 years, for carbon-14
- About 5:00, directionally: Abbr
- About 5:00, on a compass
- About 5c, in Quito
- About 5½ feet, in Spain
- About 6 trillion mi
- About 6,080 feet
- About 62 mi
- About 65 million for the Pentagon: Abbr
- About 65% of the Earth's land
- About 60 liters of watery domestic, typically
- About 60 percent of humans
- About 60 percent of Kuwaitis
- About 60 percent of us
- About 60% of a tot's body, to a tot
- About 60% of the world's inhabitants
- About 60% of the world's population
- About 60% of the world's wetlands
- About 600 million viewers watched its pilot in 1969
- About 61 cubic inches
- About 624 billion electron-volts
- About 624 gigaelectronvolts
- About 640 acres: Abbr
- About 66 degrees south latitude
- About 665 degrees, for the Arctic Circle
- About 687 days, on Mars
- About 687 Martian days
- About 7% of it is American
- About 7% of the United States
- About 70 percent of Earth's surface
- About 70 percent of the earth's surface
- About 70 percent of the globe
- About 70% of the earth's surface
- About 70% of them are between 85 and 115
- About 71% of la Tierra
- About 71% of the earth's surface
- About 75 cents in Teheran
- About 75 percent, in school
- About 75%
- About 75% of the earth's surface
- About 8,760 hours
- About 8-15 mg of iron, say
- About 88 liters
- About 80 meters, for an Airbus A380
- About 80% of the elements in the period table
- About 80% of the world's species, according to the Smithsonian
- About 85% of Iberia
- About 85%-90% of Muslims, globally [1st of 7]
- About 87 qts of cranberries
- About 877,000 hrs
- About 8½% of it is mayo