Crossword answer
ISAAC
5 letters · Used for 38 different clues · 59 appearances · Last seen Daily Themed, October 3, 2026
Letter pattern
ISAAC
Clues that lead to ISAAC
Most recent firstClueLettersPuzzleLast seen
Newton who discovered gravity5Daily ThemedOct 3, 2026
Director Lee ___ Chung5New York TimesOct 2, 2026
One-author first name on books in nine Dewey Decimal categories (1950-1992)5NewsdaySep 26, 2026
Father of 66-Down5NewsdaySep 13, 2026
Author Asimov5NewsdayAug 9, 2026
"Frankenstein" actor Oscar5USA TodayJul 15, 2026
Noah descendant5NewsdayJul 10, 2026
Famous astronomer and physicist, __ Newton5Everyday Puzzles DailyJul 4, 2026
Sci-fi writer Asimov5LA TimesJun 23, 2026
Calculus pioneer Newton5LA TimesJun 14, 2026
Stern with a bow5Wall Street JournalMay 30, 2026
Type of investment account for Ishmael's half-brother5The IndependentMay 11, 2026
Sir __ Newton5NewsdayMay 10, 2026
Physicist Newton5LA TimesMay 3, 2026
Google Easter Egg feature! Want to see an apple fall in your browser window? Then look up the scientist "___ Newton" on Google!5Daily ThemedApr 26, 2026
"I, Robot" author Asimov5New York TimesApr 16, 2026
First name of English scientist Newton (5)5The SunApr 3, 2026
Religious figure is caught welcoming Satan off and on (5)5The SunApr 3, 2026
Sir -- Newton5Eugene ShefferMar 7, 2026
Science fiction author Asimov5NYT MidiMar 3, 2026
Newton of physics5NewsdayFeb 10, 2026
___ Newton (scientist who discovered gravity thanks to an apple)5Daily ThemedFeb 1, 2026
Moses ancestor5NewsdayDec 25, 2025
Genesis father of twins5NewsdayNov 30, 2025
Scientist ___ Newton who discovered the laws of gravity5Daily ThemedMay 18, 2025
Son of Abraham5NewsdayApr 20, 2025
Sir ___ Newton (English physicist)5Daily ThemedApr 5, 2025
With 26-Across, speaker of comment5NewsdayMar 14, 2025
Author __ Bashevis Singer5NewsdayFeb 20, 2025
Miss Jamaica oddly ignored important religious figure5The IndependentJul 17, 2024
Scientist Newton5Eugene ShefferJul 9, 2024
The father of Jacob and Esau in the Old Testament5The IndependentJun 22, 2024
With 6-Down, famed physicist5Eugene ShefferMay 31, 2024
___ Newton, scientist who established classical mechanics5Daily ThemedApr 19, 2023
Sir ___ Newton, famed physicist5Daily ThemedMar 2, 2023
Newton in physics textbooks5Daily ThemedDec 22, 2022
Gravity discoverer Newton5Daily ThemedJul 1, 2022
Sir ___ Newton, English physicist known for his laws on motion and gravitation5Daily ThemedAug 27, 2021
About ISAAC in crosswords
ISAAC is a 5-letter answer that has appeared 59 times in our database across 38 different clues. It was most recently the answer to “Newton who discovered gravity” in the Daily Themed crossword on October 3, 2026.
Other 5-letter answers
AWARDPulitzer Prize, for one
AROSEOriginated
PANICPicture capturing a northern terror (5)
DELFTMany felt moved by such pottery
ABYSSChasm
ADAMS___ apple (neck bump)
GONOW"Time for you to hit the road!"
WENCH?
SORTA"Not exactly"
TAPINEasy putt
ESSAYMany a David Foster Wallace piece
ANISE19-Across flavor
BEFITBe suitable to
PUNCHHe has impact in children's entertainment
Every appearance of ISAAC (59)
Click to expand · newest first
Oct 3, 2026
Newton who discovered gravity · Daily Themed · 33 Down
Oct 2, 2026
Director Lee ___ Chung · New York Times · 46 Down
Sep 26, 2026
One-author first name on books in nine Dewey Decimal categories (1950-1992) · Newsday · Across
Sep 13, 2026
Father of 66-Down · Newsday · Down
Aug 9, 2026
Author Asimov · Newsday · Down
Jul 15, 2026
"Frankenstein" actor Oscar · USA Today · 42 Across
Jul 10, 2026
Noah descendant · Newsday · Down
Jul 4, 2026
Famous astronomer and physicist, __ Newton · Everyday Puzzles Daily · 14
Jun 23, 2026
Sci-fi writer Asimov · LA Times · Down
Jun 14, 2026
Calculus pioneer Newton · LA Times · Down
May 30, 2026
Stern with a bow · Wall Street Journal · 58 Across
May 11, 2026
Type of investment account for Ishmael's half-brother · The Independent · 21 Across
May 10, 2026
Sir __ Newton · Newsday · Down
May 3, 2026
Physicist Newton · LA Times · Across
Apr 27, 2026
Sir __ Newton · Newsday · Down
Apr 16, 2026
Newton who discovered gravity · Daily Themed · 25 Across
Apr 16, 2026
"I, Robot" author Asimov · New York Times · 35 Across
Apr 3, 2026
First name of English scientist Newton (5) · The Sun · 24 Across
Apr 3, 2026
Religious figure is caught welcoming Satan off and on (5) · The Sun · 24 Across
Mar 10, 2026
Sir __ Newton · Newsday · Across
Mar 7, 2026
Sir -- Newton · Eugene Sheffer · 44 Across
Mar 3, 2026
Science fiction author Asimov · NYT Midi · 15 Down
Feb 24, 2026
Sir __ Newton · Newsday · Down
Feb 10, 2026
Newton of physics · Newsday · Down
Feb 7, 2026
Sir -- Newton · Eugene Sheffer · 44 Across
Feb 1, 2026
___ Newton (scientist who discovered gravity thanks to an apple) · Daily Themed · 45 Across
Jan 14, 2026
Sir -- Newton · Eugene Sheffer · 7 Down
Dec 25, 2025
Moses ancestor · Newsday · Down
Nov 30, 2025
Genesis father of twins · Newsday · Across
Nov 4, 2025
Sir __ Newton · Newsday · Across
Sep 14, 2025
Author Asimov · Newsday · Down
Aug 13, 2025
Author Asimov · Newsday · Across
Jun 16, 2025
Sir ___ Newton · Daily Themed · 44 Down
Jun 9, 2025
Sir __ Newton · Newsday · Across
May 27, 2025
Sir __ Newton · Newsday · Across
May 18, 2025
Scientist ___ Newton who discovered the laws of gravity · Daily Themed · 42 Down
Apr 20, 2025
Son of Abraham · Newsday · Down
Apr 5, 2025
Sir ___ Newton (English physicist) · Daily Themed · 43 Down
Mar 14, 2025
With 26-Across, speaker of comment · Newsday · Across
Feb 20, 2025
Author __ Bashevis Singer · Newsday · Down
Jan 28, 2025
Sir __ Newton · Newsday · Across
Sep 29, 2024
Sir ___ Newton · Daily Themed · 27 Across
Jul 17, 2024
Miss Jamaica oddly ignored important religious figure · The Independent · 26 Across
Jul 9, 2024
Scientist Newton · Eugene Sheffer · 40 Across
Jun 22, 2024
The father of Jacob and Esau in the Old Testament · The Independent · 29 Down
May 31, 2024
With 6-Down, famed physicist · Eugene Sheffer · 12 Across
Apr 19, 2023
___ Newton, scientist who established classical mechanics · Daily Themed · 22 Across
Apr 17, 2023
Sir — Newton · Eugene Sheffer · 22 Down
Mar 2, 2023
Sir ___ Newton, famed physicist · Daily Themed · 23 Across
Jan 28, 2023
Sir ___ Newton · Daily Themed · 16 Across
Dec 22, 2022
Newton in physics textbooks · Daily Themed · 19 Across
Oct 16, 2022
Sir ___ Newton · Daily Themed · 31 Across
Jul 1, 2022
Gravity discoverer Newton · Daily Themed · 44 Down
Apr 27, 2022
Newton who discovered gravity · Daily Themed · 34 Down
Nov 4, 2021
Sir — Newton · Eugene Sheffer · 39 Down
Aug 27, 2021
Sir ___ Newton, English physicist known for his laws on motion and gravitation · Daily Themed · 21 Across
Aug 14, 2021
Sir ___ Newton · Daily Themed · 42 Down
Apr 23, 2020
Sir — Newton · Eugene Sheffer · 8 Down