- RHO
- 17th Greek letter
- Greek P
- Plato's P
- Greek letter
- Letter from Greece
- Pi follower
- Sorority letter
- Sweater letter
- {/P/} -looking character pronounced as an {/R/}
- {/Pi/} follower resembling {/P/}
- The 17th letter of the Greek alphabet
- P
- Pi follower (happy Thanksgiving, by the way)
- Letter after pi
- Sign of density
- P look-alike
- Character used in density
- Density symbol, in physics
- Frat row letter
- Good name for the crew team fraternity?
- Letter between pi and sigma
- Pan-Hellenic letter
- Symbol of density
- Seventeenth letter
- Follower of pi
- Platonic P
- Pi-sigma go-between
- P, on a frat house
- P, in Greece
- Physicist's symbol for density
- P, to Pythagoras
- Density symbol
- Symbol for density in physics equations
- P, to Ptolemy
- Air-density symbol
- P, to Plutarch
- Chi-___ (military insignia for Constantine the Great)
- Letter used with theta and phi to represent spherical coordinates
- P, for Pythagoras
- Greek consonant
- Greek letter in an early Christogram
- Fraternity P
- P on fraternity row
- Letter in the Hammett equation
- Kind of meson
- Letter whose plural sounds like a flower
- Symbol sometimes used in the ideal gas law equation
- Half of a classic symbol for Jesus
- Kind of meson, in physics
- First letter of a "colossal" Mediterranean island
- It represents a sound two letters away from the one it resembles
- The Cyrillic "er" comes from it
- Frat letter
- Letter before sigma
- P, to the Greeks
- Corinthian letter
- Sigma preceder
- P, in the Greek alphabet
- Pythagorean P
- Campus letter
- Peloponnesian P
- Letter that may be used by 61-Down
- P at the Parthenon
- Greek letter that looks like a P
- Greek letter that's a homophone of two English words
- P-shaped Greek letter
- Fraternity letter
- P in the Parthenon
- P, to Socrates
- Greek letter whose capital looks like a P
- It's between pi and sigma
- Pi-sigma connection
- One-third of a Greek boating fraternity?
- 17th letter of the Greek alphabet
- P-like Greek letter
- P, to Greeks
- Greek letter that represents electrical resistivity
- Greek 17th
- See 27-Down
- Seventeenth star in a constellation
- Between pi and sigma
- P, on a frat sweater
- Pi-sigma link
- P-like letter
- P, to Plato
- Parthenon P
- Density symbol borrowed from the Greek alphabet
- Pi + 1
- 50 Across preceder
- Frat-house letter
- Hellenic P
- P as in physics
- Christogram letter
- Letter on some euros
- Greek letter after pi
- Letter that sounds like a swath of seats
- P two before T
- P, as for Plato
- Letter on Greek euros
- P that's two before T
- Greek euro letter
- Reflection coefficient symbol
- First letter in the last third of the Greek alphabet
- Reflectance symbol
- See 16-Across
- Sigma follows it
- Letter on some campus sweatshirts
- Letter that follows pi
- P, to Pericles
- Greek letter used in spherical coordinates
- Letter used as a density symbol
- Fraternity character
- Greek R.
- Just before sigma.
- Before sigma.
- Alpha Chi ___.
- Next after pi.
- Pi, ___, sigma.
- It follows pi.
- After pi.
- Phi ___ Sigma.
- Pi's follower.
- Greek letter, feature of this puzzle.
- Greek homophone for roe
- What sigma follows
- Ar, in Athens
- Greek ar
- Seventeenth Greek letter
- Sigma predecessor
- Pi chaser
- Another Greek letter
- Symbol for density
- Sigma's predecessor
- See 10-Across
- Density symbol, in mechanics
- Letter on some college jackets
- P, on a fraternity jacket
- 17th chapter
- Christogram component
- Sorority chapter
- P on a fraternity house
- When said three times, a crew member's fraternity?
- When tripled, a crew member's fraternity?
- Chi ___ (religious symbol)
- Letter from the Corinthians
- The "r" in Aristotle
- Pythagorean character
- Letter in Socrates' name
- Greek character
- When written three times, fraternity in "Revenge of the Nerds"
- A fraternity chapter
- Euripides character?
- Fraternity chapter #17
- 55-Down letter
- Secondary character in Aristophanes?
- Greek letter that sounds like the end of 16-, 22-, 36-, 47- or 58-Across
- P on campus
- Symbol of mass density
- Certain sorority chapter
- Fraternity chapter
- Mass-over-volume symbol
- Chi-___ (Christian symbol)
- Aristotle character
- Certain fraternity chapter
- P pronounced like an R
- Second letter before 7-Down
- Symbol of charge density
- Sorority character
- Homophone of "row"
- P, for Plato
- When said three times, good name for a crew fraternity?
- Fraternity letter that's a homophone of where fraternities might be found
- Part of the original spelling of "Sparta"
- Part of the Greek spelling of "Aristotle"
- Greek symbol for density
- Letter seen in a Christogram
- Letter two before tau
- Fraternity row letter with a homophone in this clue
- ρ
- Density symbol, in engineering
- P as in Ptolemy
- Plutarch character
- Sorority "P"
- Sorority's P
- 17th of 24
- Letter related to the Hebrew "rosh"
- Part of Piraeus, to Greeks
- P, on a fraternity sweater
- R
- P, in sorority names
- Greek letter before sigma
- Greek letter that sounds like part of a seat assignment
- Sigma Gamma ___ (Divine Nine sorority)
- Crew team's favorite Greek letter?
- Greek letter between pi and sigma
- Letter in a Christogram
- Part of the Greek alphabet
- P, in Greek
- Pi's successor
- It's after pi
- Christogram component, perhaps
- Aristotle's P
- Christogram component, sometimes
- Sigma neighbor
- P, on some sweaters
- Seventeenth letter of the Greek alphabet
- A Greek letter
- Greek alphabet's 17th letter
- Serving after pi?
- P of the Greeks
- P, to Persephone
- Socrates' P
- It looks like a "P" but sounds like an "R"
- P, in a sorority name
- P, to Penelope
- P, in Athens
- P, on a sorority house
- P, in Crete
- Greek letter that sounds like fish eggs
- Greek letter used to represent density
- Ten after 20 Across
- Follows pi
- Letter from Athens
- Pi Sigma separator
- This puzzle's rating, in Greek
- Letter shaped like a P
- Frat letter, perhaps
- Another fraternity letter
- Letter resembling a P
- P, in a fraternity name
- Greek letter that sounds like part of a spreadsheet
- P on a frat pin
- Greek letter that sounds like a verb
- Homophone of "roe"
- Greek letter that resembles a P
- Greek letter that sounds like "row"
- Greek letter that sounds like 63-Down
- Only Greek letter ending in "o"
- The letter after pi
- P to Pan
- Pythagoras's P
- Letter that's hidden in your home?
- P in some ancient texts
- Resistivity symbol
- P on the Parthenon
- Letter from college?
- Measure of an option's sensitivity to interest rate changes
- Hector's end?
- End of Hector?
- P's look-alike
- 17th of 24 letters
- Character from Aristophanes?
- P in Peloponnesus
- P, on fraternity sweaters
- Letter from Homer
- Letter that looks like a P
- P, sometimes
- 17th letter
- 42-Across preceder
- Character from Euripides?
- Symbol used for density