- - Liberal leaves Indian city, securing good character in Patras?
- - "S" in Athens
- - Greek letter used to indicate summation in mathematics
- - Letter resembling a sideways M
- - English writer upset about first letter from Greece — or a later one
- - greek letter that resembles a sideways m
- - Married soldier's sent back a letter from abroad
- - Timeless part of flower as symbol of summer?
- - The upper case form of this Greek letter indicates addition in mathematics
- - Symbol seen in general mathematics appears initially
- - Mathematician's summation symbol
- - Calculus class symbol
- - 18th chapter of a frat
- - Mathematical symbol: short symbol written by scholar
- - Greek letter that looks like a sideways M
- - Foreign character in mag is corrected
- - Summation symbol
- - Summation symbol, in math
- - Greek letter which means "sum" in maths
- - Character seen twice in Homer's "Odyssey"
- - Symbol in Greek, merely alphabetical initially
- - Arithmetic series symbol
- - What sounds like a fag, postgraduate producing letter in Greek
- - In the morning soldiers knocked over character in Athens
- - Drops tenor in shame with Greek letter
- - Standard deviation symbol
- - Sum symbol
- - Sum symbol in math
- - S, as in Socrates
- - Letter on a house used by 4-Across
- - Summation signifier, in math
- - Calculus symbol
- - Symbol in a Riemann sum
- - Symbol of summation
- - Letter on a frat house
- - Letter on the AutoSum button in Excel
- - Either "E" in "Greek" in the poster for "My Big Fat Greek Wedding"
- - Greek letter meaning "sum" in math
- - Symbol of conductivity
- - Letter in some fraternity names
- - Sign of summer beginning in Santorini
- - symbol in summation notation
- - Almost hire graduate with statistical letter
- - Greek character slur lacks time
- - Greek alphabet's 18th letter
- - Greek character American soldiers backed
- - Plato's "S"
- - shame there's no time for foreign character
- - another is turning up with gamma, oddly
- - letter from greece is returned by grand mother
- - From returning US soldiers, mother getting foreign letter
- - Rho-tau link
- - This Greek letter: Σ
- - two after pi
- - The 18th letter of the Greek alphabet
- - Letter removing tons from disgrace
- - Greek character's mark of disgrace, with time passing
- - Summation notation letter
- - Rho-tau linkup
- - Greek letter S
- - Letter after rho
- - Rho follower
- - 18th Greek letter
- - Frat house letter
- - Greek "S"
- - Letter before tau
- - 18th letter of the Greek alphabet
- - Eighteenth letter of the Greek alphabet
- - Eighteenth Greek letter
- - What Archimedes was finished with
- - Letter between rho and tau
- - Six ...... (quality assurance term)
- - Sophocles's initial, to Sophocles
- - Letter before 7-Down
- - Greek character has gas? I'm off!
- - Tau preceder
- - With 65-Down, 160-year-old fraternity founded at Miami University of Ohio
- - Disgrace, having no time for Greek character
- - Sophocle's initial
- - S, for Socrates
- - Σ
- - Rho-tau connection
- - "The Sweetheart of ...... Chi"
- - Head of ancient Sparta?
- - Start for Sophocles?
- - Start for Socrates?
- - Part of some frat names
- - It's halfway between pi and upsilon
- - Campus letter
- - ...... Society (super-high I.Q. group)
- - Science society ...... Xi
- - Eighteenth letter
- - Rho succeeder
- - ...... Alpha Epsilon fraternity
- - Part of SASE
- - Tau's predecessor
- - " . . . sweetheart of ...... Chi"
- - Ess
- - Millesecond
- - Between rho and tau
- - Millisecond
- - ...... VII.
- - Wally's ...... 7.
- - ...... Xi, fraternity for science research.
- - Certain Greek letter
- - XXX
- - Greek consonant
- - Fraternity letter
- - Sorority letter
- - Frat letter
- - Greek letter
- - ... chi
- - Fire
- - Sign of summer
- - Fraternity: ..... Pi
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