Sign up for military service
Sign up for more
Sign up for more issues
Sign up for something
Sign up for, as a class
Sign up for, as a contest
Sign up in July?
Sign up in summer?
sign up to
Sign up to compete
Sign up to receive email alerts, say
Sign up to serve
Sign up with
Sign up with again
Sign up, as for a class
Sign up, in Sussex
Sign up, to Brits
Sign used in a 21-Across
sign used in mathematics
SIGN used to convey a meaning
SIGN used to join two words together
Sign users
Sign usually seen at night
sign Vegas area
Sign warning people to be quiet
Sign warning word about a watchdog
Sign with a crossed-out horseshoe-shaped arrow
Sign with a double-tailed arrow
Sign with a red light
Sign with a sting?
Sign with an antlered pictogram
Sign with an arrow
sign with red letters
Sign with scales
Sign with the times
Sign without words
Sign word after "Ye"
Sign word beckoning a Canadian driver
Sign word evoking days of yore
Sign word in red
Sign word often seen before "next exit"
Sign word often translated into multiple languages
sign word Road Bump in the
Sign word that may be followed by an exclamation point
Sign words suggesting a bad shortcut?
Sign words with "lunch"
Sign wrong?
sign Zodiac animal
Sign- ___ (approvals)
Sign- ___ (farewells)
Sign-changing area
Sign-enhancing gas
sign-language
Sign-lettering aid
Sign-making aid
Sign-making aids
Sign-making device
Sign-making tool
Sign-off
Sign-off adverb
sign-off CBer relative
Sign-off from there
Sign-off in texting or cyber speak
Sign-off kisses
Sign-off word
Sign-off words
Sign-offs from cabs
Sign-on requirement, often
Sign-reading site
Sign-up
Sign, as a check
Sign, as a check's back
Sign, as a contract
Sign, as a deal
Sign, as a will
Sign, as an agreement
Sign, in a way
Sign, may be substitute for the real thing
Sign, per Variety
Sign, say
Sign, slangily
Sign, so to speak
Signable limb covers
signage
Signage gas
Signal
Signal 'OK'
Signal 'yes'
Signal "Come here," say
Signal "Hi!" or "Bye!"
Signal "I'm interested" on a dating app
Signal "OK" silently
Signal "OK" with one's head
Signal "yes" with one's head
Signal "yes" with your head
Signal “Hello!”
Signal a musician
Signal a performer doesn't want to hear
Signal a star
Signal after tattoo
SIGNAL after which town inhabitants must be indoors
Signal agreement
Signal agreement, in a way
Signal an actor
Signal an entrance
Signal an OK
Signal approval
Signal as a conductor might
Signal at a pagoda, maybe
Signal at busy intersections
Signal at Christie's
Signal at Sotheby's
Signal booster
Signal boosts on Twitter, briefly
Signal box controls
Signal by hand
signal call
SIGNAL call on cornet/trumpet
Signal caller
Signal carrier in the body
Signal consent
Signal converter
Signal enhancer
Signal fire
Signal fire on a hill
Signal fires
Signal for a fastball
Signal for a good samaritan
Signal for a performer
Signal for a programmer's jump
Signal for a swig
SIGNAL for actor
Signal for an act to end
Signal for dinner
Signal for help
Signal for immediate assistance
Signal for the USCG
Signal from a clock
Signal from a marooned sailor
Signal from a note passer
Signal from a sinking ship
Signal from a third base coach, sometimes
Signal from an empty stomach
Signal from an impatient motorist
Signal from offstage
Signal from someone in trouble
Signal from the conductor
Signal from the third base coach, maybe
Signal from the wings
Signal giver
signal going inside an electronic system
Signal going into an electronic system
signal going into an electronicsystem
Signal hello or goodbye
Signal hinted at by the first parts of 17-, 31- and 46-Acros
SIGNAL horn
Signal in a courtroom
signal in advance
Signal in many homes, nowadays
Signal in the Gotham City sky
Signal interference
signal light
signal light on a hill
Signal lights
Signal meaning 'help'
signal Network
Signal of a kind
Signal of a soccer ejection
Signal of a sort
Signal of approval
Signal of comprehension
Signal of disdain
Signal of distress
SIGNAL of fire
Signal of imminent danger
Signal officially replaced in 1999
Signal on stage
Signal on the hour
Signal on the road
Signal one's agreement
Signal or indicate
signal or instruction to an aircraft not to land
Signal pupils to assemble perhaps: sound familiar?
Signal quality symbols
signal railroad
Signal receiver
Signal receivers
Signal sayonara
Signal shade
Signal showing a storm's position
Signal silently
Signal silently to
Signal since 1912
Signal sound
Signal strengthener
Signal subtly
SIGNAL success
Signal that a reply is coming in a messaging app
signal that comes out of an electronic system
Signal that danger has passed
Signal that one's ready for dinner?
Signal that replaced "CQD"
Signal the dawn, in a way
Signal the genie
Signal to a runner
Signal to act
Signal to actor
Signal to an actor
Signal to an on-call doctor
SIGNAL to begin
Signal to begin speaking
Signal to begin speaking, perhaps
Signal to clear the road
Signal to come
Signal to come over
Signal to do something
Signal to enter
Signal to go ahead
Signal to go on
Signal to go onstage
Signal to leave
Signal to leave a message
Signal to leave, perhaps
Signal to listen
Signal to pause
Signal to place a call
Signal to proceed
Signal to pull over
Signal to record a message
Signal to speak
Signal to start
Signal to start partying?
Signal to start speaking
Signal to start speaking, perhaps
Signal to start talking
Signal to stop
Signal to stop, with "down"
Signal to the auctioneer
SIGNAL TO WAKEN SOLDIERS
Signal tones
Signal via beeper
Signal when sinking
Signal when to begin
Signal with a beeper
Signal with a gesture
signal with flags
Signal with the hands
Signal withdrawal
Signal-blocking device
Signal-carrying, in a way