It's about the number of Keys on a Piano.
(Moden layout; A0 to C7)
It's about four-fifths the number of Wolves in Yellowstone National Park.
In other words, 88 is 0.8460 times the count of Wolves in Yellowstone National Park, and the count of Wolves in Yellowstone National Park is 1.180 times that amount.(a.k.a. Henihco'oo; a.k.a. Héetíhco'oo) (December 2014 figures; Wyoming Park area)
As of the 2014 population count, there were 104 wolves living in Yellowstone National Park, in twelve packs. All of the wolves now living in the Park are thought to have descended from the 66 wolves (re)introduced into the Park in 1995-96.
It's about one-and-one-fifth times the number of Submarines in the US Navy.
In other words, the count of Submarines in the US Navy is 0.830 times 88.(a.k.a. Subs) (includes all types, all classes) (2015 figures)
It's about three-fourths the number of Elements on the Periodic Table.
In other words, 88 is 0.7460 times the count of Elements on the Periodic Table, and the count of Elements on the Periodic Table is 1.340 times that amount.(a.k.a. Periodic Table of the Elements, a.k.a chemical elements) (confirmed elements as of 2016)
It's about two-thirds the number of Union Stations in the United States.
In other words, 88 is 0.6520 times the count of Union Stations in the United States, and the count of Union Stations in the United States is 1.530 times that amount.(a.k.a. Union Terminal; a.k.a. Joint Station; a.k.a. Union Depot) (2016 figures)
Typically shared between multiple railroad companies and stations, there are about 135 "Union Stations" in the United States. Of these, the busiest station is Chicago Union Station, which handles 120,000 passengers each year.
It's about one-and-three-fifths times the number of Countries in Africa.
In other words, the count of Countries in Africa is 0.630 times 88.(2016 figures) (sovereign states recognized by the UN only)
The continent of Africa includes 54 sovereign countries recognized by the United Nations as of 2016. It is the second-most populous continent in the world, with 1.1 billion inhabitants.
It's about three-fifths the number of Moons in our Solar System.
In other words, 88 is 0.6030 times the count of Moons in our Solar System, and the count of Moons in our Solar System is 1.660 times that amount.(2015 figures) (confirmed moons only; dwarf planet satellites not included)