The Clue
"___ boom bah!" (3 letter answer)
The Answer
SIS
Tags
Notes
The answer SIS is seen frequently, appearing about once every 70 puzzles.
Related Clues
Convenes
One in the family
Adele, to Fred
Adolescent nickname
Auntie, to Mom
___-boom-bah
Boom preceder
Bro's counterpart
Bro's kin
Bro's relative
Bro's sib
Certain sib
Cheer start
Cheer starter
Close relative
Fam. member
Familial title
Family girl
Family member
Family nickname
Female rel.
Foreign agreements
Household name?
Little lady
Lucy, to Linus
Relative, for short
Sibling, in brief
Sonny's sibling
Yucatán yeses
Family girl, for short
Family pet name
One at the kids' table, perhaps
Lisa, to Bart Simpson
Little girl's nickname
Definition
SIS as a noun:
1. (sister, sis) = a female person who has the same parents as another person; "my sister married a musician"
SI as a noun:
1. (Systeme International d'Unites, Systeme International, SI system, SI, International System of Units, International System) = a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela); "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites"
2. (silicon, Si, atomic number 14) = a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
3. (ti, te, si) = the syllable naming the seventh (subtonic) note of any musical scale in solmization