1
a
: a list of players taking part in a game (as of baseball)
the starting lineup
b
: the players on such a list
2
a
: an alignment (as in entertainment or politics) of persons or things having a common purpose, distinction, or bond
the show's star-studded lineup
b
: line sense 11
the new lineup of fall fashions
c
: a television programming schedule
tonight's lineup of programs
3
: a line of persons arranged especially for inspection or for identification by police
was asked to pick her attacker out of a lineup
lined up; lining up; lines up
1
: to assume an orderly linear arrangement
line up for inspection
2
: to align oneself
he lined up with the liberals against the bill
Examples of lineup in a Sentence
Noun
The team has a powerful lineup.
The networks all had different lineups for the new season.
She was asked to pick her attacker out of a lineup.
Recent Examples on the Web
Aaron Heisen, Daily News, 25 Jan. 2026
The Orioles brought in Pete Alonso and Taylor Ward for their lineup while adding Shane Baz and Ryan Helsley to fortify their pitching staff.
—Mac Cerullo, Boston Herald, 25 Jan. 2026
Joseph Person, New York Times, 28 Jan. 2026
The ships’ commanders lined up their crews in three rows, guarded by soldiers.
—Literary Hub, 28 Jan. 2026
See All Example Sentences for lineup
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Noun
Sophomore Trent Perry also had 18, scoring in double-digits for the fifth time in six games since entering the starting lineup for Skyy Clark (hamstring).
—Aaron Heisen, Daily News, 25 Jan. 2026
The Orioles brought in Pete Alonso and Taylor Ward for their lineup while adding Shane Baz and Ryan Helsley to fortify their pitching staff.
—Mac Cerullo, Boston Herald, 25 Jan. 2026
Verb
Woods played mostly inside for the Tigers but showed the versatility to line up at defensive end as well.
—Joseph Person, New York Times, 28 Jan. 2026
The ships’ commanders lined up their crews in three rows, guarded by soldiers.
—Literary Hub, 28 Jan. 2026
See All Example Sentences for lineup
Cite this Entry
“Lineup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lineup. Accessed 30 Jan. 2026.
Copy CitationKids Definition
lineup
1 of 2 noun
line·up
ˈlī-ˌnəp 
1
: a line of persons arranged especially for identification by police
2
a
: a list of players taking part in a game (as baseball)
b
: the players on such a list
line up
2 of 2 verb(ˈ)lī-ˈnəp
1
: to come together or arrange in a line or rows
line up for inspection
2
: to put into alignment
line up the edges so they are even
line up the decimal points before adding or subtracting
3
: to arrange for
lined up support for the candidate
lined up a summer job
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