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
Christa Joanna Lee, Allure, 22 Mar. 2026
Spoelstra used a starting lineup of Adebayo, Larsson, Fontecchio, Herro and Mitchell for the second time; that group also opened Thursday’s loss to the Lakers.
—Barry Jackson, Miami Herald, 22 Mar. 2026
Tarot.com, Sun Sentinel, 19 Mar. 2026
Light rain fell as ambulances lined up outside the cemetery and began unloading dozens of plain wooden caskets.
—Arkansas Online, 19 Mar. 2026
See All Example Sentences for lineup
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Noun
From traditional staples like ginseng to barrier-loving ceramides and buzzy newcomers like PDRN, the lineup below captures exactly why Korean skin care continues to shape the global beauty conversation.
—Christa Joanna Lee, Allure, 22 Mar. 2026
Spoelstra used a starting lineup of Adebayo, Larsson, Fontecchio, Herro and Mitchell for the second time; that group also opened Thursday’s loss to the Lakers.
—Barry Jackson, Miami Herald, 22 Mar. 2026
Verb
June 21 – July 22 Morning focus lines up with ambition.
—Tarot.com, Sun Sentinel, 19 Mar. 2026
Light rain fell as ambulances lined up outside the cemetery and began unloading dozens of plain wooden caskets.
—Arkansas Online, 19 Mar. 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 22 Mar. 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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