ˈbī
before consonants also bə
1
: in proximity to : near
standing by the window
2
a
: into the vicinity of and beyond : past
went right by him
b
: through or through the medium (see medium entry 1 sense 2) of : via
enter by the door
c
: in the direction of : toward
sailed north by east
3
a
: during the course of
studied by night
b
: not later than
be there by 2 p.m.
4
a
: through the agency (see agency sense 3) or instrumentality of
a poem written by Keats
death by firing squad
taken by force
happened by luck
b
: born or begot of
had two sons by his first wife
one child by her second husband
c
: sired or borne by
having foals by champion race horses
5
: with the witness or sanction (see sanction entry 1 sense 4c) of
swear by all that is holy
6
a
: in conformity with
acted by the rules
b
: according to
called her by name
sold by the pound
7
—used as a function word in multiplication, in division, and in measurements
divide a by b
multiply 10 by 4
a room 15 feet by 20 feet
8
a
: with respect to
a lawyer by profession
b
: on behalf of
did right by his children
9
a
: in or to the amount or extent of
win by a nose
b
chiefly Scotland
: in comparison with : beside
10
—used as a function word to indicate successive units or increments
little by little
walk two by two
11
: in the opinion of : from the point of view of
OK by me
see also:
variants
or bye
1
: being off the main route : side
a by passage
2
: incidental
by effects
plural byes
ˈbīz
: the position of a participant in a tournament who advances to the next round without playing
drew a first-round bye
—used as a shortened form of goodbye to express farewell
When he finally spoke, though, and said, "Bye, I'll call you," instead of disappointment she had felt an enormous rush of relief—a feeling, she thinks now, of things falling back into place.—Ann Packer
The stag lowered his head and raised it again. He blew out a frosty puff of air, then leaped away, vanishing into the mist. "Bye," Annie said wistfully.—Mary Pope Osborne
"Bye, Mom! Bye, Auggie!" I kissed them both quickly and headed toward the door.—R. J. Palacio
variant spelling of by entry 3, by entry 4, by entry 5
: something of secondary importance : a side issue
by the by
Cite this Entry
“By.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by. Accessed 7 Oct. 2026.
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