| 100% | OED | 3 | It added ''e-waste'' in 2020 |
| 53% | HASTE | 5 | It results in waste |
| 52% | LEAPYEAR | 8 | It adds an extra day in February: 2 wds. |
| 52% | ATARI | 5 | It made E.T. in 1982 |
| 51% | OED | 3 | It added "essential worker" in March of 2021: Abbr. |
| 50% | OED | 3 | “Awesomesauce” was added to it in 2020: Abbr. |
| 50% | FRINGEBENEFIT | 13 | That it adds panache to a lampshade, e.g.? |
| 50% | SALT | 4 | It may be added in a dash |
| 50% | HASTE | 5 | It makes waste, in a proverb |
| 50% | HASTE | 5 | It "makes waste," in a saying |
| 49% | ENERGY | 6 | It's the E in "e equals mc2" |
| 48% | ELECTRIC | 8 | It's the E in American manufacturing company GE |
| 48% | EMERGENCY | 9 | It's the E in the United Nations' UNEF |
| 48% | ESTIMATED | 9 | It's the E in an aircraft's ETA |
| 47% | UMAMI | 5 | It was added to create an everyday quintet in 1990 |
| 47% | ENERGY | 6 | It's the e in Einstein's equation e = mc2 |
| 47% | OED | 3 | "Mansplain" was added to it in Jan. 2018 |
| 47% | OED | 3 | "Webspace" was added to it in Jun. 2017 |
| 47% | ORA | 3 | "Che ___ e?" ("What time is it?" in Italy) |
| 47% | WHALE | 5 | Humphrey in the 2020 film "Dolittle," e.g. |
| 47% | NATO | 4 | North Macedonia joined it in 2020 |
| 47% | DRAW | 4 | It adds one point to a soccer team's standing in the English Premier League |
| 47% | EVER | 4 | It becomes its own synonym when "for" is added in front |
| 47% | ABLE | 4 | It becomes its own synonym when "cap" is added in front |
| 46% | USAIR | 5 | Carrier that added "ways" to its name in 1997 |
| 46% | NBA | 3 | League that ended its 2020 season in a “bubble” |
| 46% | DELL | 4 | Computer company with a crooked E in its logo |
| 46% | EYETEST | 7 | It starts with E, in two different ways |
| 45% | USAIR | 5 | Company that added four letters to its name in 1997 |
| 45% | OED | 3 | Ref. work that added "Dylanesque" to its lexicon in 2018 |