| 100% | SDER | 4 | Tracked mass transit system in S. Cal. started in 1891 |
| 34% | METRO | 5 | Transit system in Paris |
| 32% | MUNI | 4 | Public transit system in San Francisco, familiarly |
| 29% | APARTHEID | 9 | Prejudicial system abolished in S. Africa by 1991 |
| 28% | SCLEROSIS | 9 | S in the immune system disease MS |
| 28% | ELS | 3 | Lines in the second-busiest rail-transit system in the U.S. |
| 28% | SRILANKA | 8 | Its economic crisis spurred mass anti-government protests starting in March 2022 |
| 28% | KFC | 3 | Fast-food franchise that started in S. Salt Lake, Ut. |
| 26% | GRAM | 4 | Small unit of mass in the metric system |
| 26% | KILOGRAM | 8 | Base unit of mass in International System of Units |
| 26% | DCMETRO | 7 | U.S. capital transit system |
| 26% | METRO | 5 | Paris's underground transit system |
| 26% | METRO | 5 | Montreal's rapid transit system |
| 25% | ONSTAR | 6 | GM's tracking and navigation system |
| 25% | SRS | 3 | S.A.T. takers, for short. Also a system used in airbags : Abbr |
| 25% | ASDIC | 5 | Underwater detection system that started being produced in England in 1922 |
| 25% | SUBWAY | 6 | New York's underground public transit system |
| 25% | XXXXXXX | 7 | Where A's start in the field |
| 24% | ARON | 4 | Cal's brother, in literature |
| 24% | EEN | 3 | Nighttime's start, in poetry |
| 24% | ZED | 3 | Zodiac's start, in England |
| 24% | LEDE | 4 | Article's start, in journalese |
| 24% | MUNI | 4 | San Francisco's public transit system, with "the" |
| 24% | ARON | 4 | Cal's twin brother in "East of Eden" |
| 24% | META | 4 | Facebook's parent company, starting in October 2021 |
| 24% | ETRE | 4 | Start of Hamlet's famous question, in French |
| 24% | ANTE | 4 | Morning's start, in old Rome? |
| 24% | LEDE | 4 | Article's start, in journalism jargon |
| 24% | BMINOR | 6 | Bach's Mass in ___ |
| 24% | ACOL | 4 | Popular British bridge bidding system that started to evolve in the mid-1930s |