Meanings
einstein1
plural einsteins
- datedOne mole of photons, regardless of frequency, as used to measure irradiance.
The einstein (symbol E) is an obsolete unit with two conflicting definitions.
- informalA genius; a very smart person.
He's a prodigy — they call him their little einstein.
Synonyms: boffin, brain, brainiac, bright spark, egghead, geek, nerd, Poindexter
- broadlyinformalsarcasticAn idiot; a very stupid person.
Yeah, that guy is a real einstein — he always finds a way to mess up the simplest order.
Synonyms: boffin, brain, brainiac, bright spark, egghead, geek, nerd, Poindexter
einstein2
plural einsteins
- mathematicsA shape that can be repeated to cover a plane with a nonrepeating pattern.
In less poetic terms, an einstein is an “aperiodic monotile,” a shape that tiles a plane, or an infinite two-dimensional flat surface, but only in a nonrepeating pattern. (The term “einstein” comes from the German “ein stein,” or “one stone” — more loosely, “one tile” or “one shape.”)
2023 March 28, Siobhan Roberts, “Elusive ‘Einstein’ Solves a Longstanding Math Problem. And it all began with a hobbyist “messing about and experimenting with shapes””, in New York Times, retrieved 28 Mar 2023
Einstein3
plural Einsteins
- Albert Einstein, the world-famous 20th-century theoretical physicist who developed the theory of relativity.
Gaston: Picasso, Einstein, Schmendiman. Somehow it doesn't have a ring.
1993, Steve Martin, Picasso at the Lapin Agile4 more examples
Men of Science More or Less Agog Over Results of Eclipse Observations. EINSTEIN THEORY TRIUMPHS Stars Not Where They Seemed or Were Calculated to be, but Nobody Need Worry. A BOOK FOR 12 WISE MEN No More in All the World Could Comprehend it, Said Einstein When His Daring Publishers Accepted it.
1919 November 10, “LIGHTS ALL ASKEW IN THE HEAVENS”, in New York TimesEinstein said he could never understand it all / Planets spinning through space
1977, James Taylor, “Secret O' Life”, in JT, Columbia RecordsWe're sitting in a coffee shop in Sunnyvale, California. It's late. I've had a few beers, and my dinner date has downed a few plum wines. I peer deep into his eyes, trying to figure out why so many people throughout the high tech universe think Henry Massalin could be the Einstein of our time.
1996 December, Gary Andrew Poole, “Qua”, in Wired, →ISSNIf Einstein, my dear / Were a toll booth cashier / I imagine he too would be [bored]
2000 January 22, Listener Limerick Challenge: Wait, Wait...Don’t Tell Me!, spoken by Carl Kasell, via National Public Radio - A surname from German.
plural Einsteins
- sarcasticsometimesAn extremely clever or intelligent person.
Good job, Einstein, thinking you could grab the wires with your pliers.
1 more example
Can you believe he's just a kindergartener? It looks like they've got an Einstein in the family.
Synonyms: Albert Einstein, Buddha, clever clogs, clever dick, know-all, know-it-all, smart aleck, smart ass
Synonyms & antonyms
nounA genius; a very smart person.
nounAn idiot; a very stupid person.
nounAn extremely clever or intelligent person.
More synonyms by meaning
nounsomeone who has exceptional intellectual ability and originality
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
einstein · noun
Photochemistry sense named in honor of Albert Einstein, who explained the photoelectric effect. Informal sense from the widespread perception that Albert Einstein was a great genius.
Full word history & related roots →einstein · noun
From German ein Stein, "one stone", coined by scientists in recent decades, but with tongue-in-cheek tacit acknowledgment of the homonymy with einstein and Einstein; "a pun playing with the famous scientist's name and the German term "ein Stein" for "one stone".
Full word history & related roots →Einstein · proper noun, noun
- Proto-Indo-European*ís?
- Proto-Indo-European*h₁óynos
- Proto-Germanic*ainaz
- Proto-West Germanic*ain
- Old High Germanein
- Middle High Germanein
- Germanein
- Germaneines
- Germaneins
- Germanein-
- Proto-Indo-European*steh₂-
- Proto-Indo-European*steyh₂-
- Proto-Indo-European*stóyh₂nos
- Proto-Germanic*stainaz
- Proto-West Germanic*stain
- Old High Germanstein
- Middle High Germanstein
- GermanStein
- Germanein
- GermanStein
- GermanEinstein
- EnglishEinstein
Borrowed from German Einstein. * The common noun is an eponym of Albert Einstein.
More words from German
Full word history & related roots →Translations
Arabic أَيْنْشْتَايْن
- أَيْنْشْتَايْن (ʔaynštāyn)Albert Einstein
Bengali আইনস্টাইন
- আইনস্টাইন (ainsṭain)Albert Einstein
Bulgarian Айнщайн
- Айнщайн (Ajnštajn)Albert Einstein
Chinese Cantonese 愛因斯坦 /爱因斯坦
- 愛因斯坦 /爱因斯坦 (oi³ jan¹ si¹ taan²)Albert Einstein
Chinese Mandarin 愛因斯坦 /爱因斯坦
- 愛因斯坦 /爱因斯坦 (Àiyīnsītǎn)Albert Einstein
Danish Einstein
- EinsteinAlbert Einstein
Dutch Einstein
- EinsteinAlbert Einstein
Esperanto Ejnŝtejno
- EjnŝtejnoAlbert Einstein
Finnish Einstein
- EinsteinAlbert Einstein
French Einstein
- EinsteinAlbert Einstein
German Einstein
- EinsteinAlbert Einstein
Greek Αϊνστάιν
- Αϊνστάιν (Aïnstáin)Albert Einstein
Hebrew איינשטיין
- איינשטיין (Aynshteyn)Albert Einstein
Hindi आइनस्टाइन
- आइनस्टाइन (āinasṭāin)Albert Einstein
Italian Einstein
- EinsteinAlbert Einstein
Japanese アインシュタイン
- アインシュタイン (Ainshutain)Albert Einstein
Korean 아인슈타인
- 아인슈타인 (ainsyutain)Albert Einstein
Norwegian Bokmål Einstein
- EinsteinAlbert Einstein
Persian اینشتین
- اینشتینAlbert Einstein
Polish ajnsztajn, einstein
- ajnsztajnone mole of photons
- einsteinone mole of photons
- EinsteinAlbert Einstein
Portuguese Einstein
- EinsteinAlbert Einstein
Russian Эйнште́йн
- Эйнште́йн (Ejnštéjn)Albert Einstein
Spanish Einstein
- EinsteinAlbert Einstein
Thai ไอน์สไตน์
- ไอน์สไตน์ (aisàdtai)Albert Einstein
Ukrainian Ейнште́йн
- Ейнште́йн (Ejnštéjn)Albert Einstein
Urdu آئنسٹائن
- آئنسٹائنAlbert Einstein
Yiddish אײַנשטיין
- אײַנשטיין (aynshteyn)Albert Einstein
Rhymes & wordplay
Rhymes with einstein
Anagrams
Cite this entry
einstein. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/einstein
“einstein.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/einstein. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “einstein,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/einstein.
Source: einstein on Wiktionary, CC BY-SA 4.0.