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Definitions

mainframe

[meyn-freym] / ˈmeɪnˌfreɪm /
NOUN
central processing unit
Synonyms
WEAK
CPU central processor processor
NOUN
computer
Synonyms
STRONGEST
PC data processor desktop computer personal computer
STRONG
CPU central processing unit device handheld computer laptop machine micro microcomputer mini minicomputer notebook notebook computer processor tablet
WEAK
abacus artificial intelligence brain electronic brain number cruncher thinking machine
NOUN
data processor
Synonyms
WEAK
CPU Macintosh PC calculator laptop mac microcomputer number cruncher personal computer word processor
NOUN
management
Synonyms
STRONGEST
administration authority board executive
STRONG
bosses brass directorate directors employers execs executives head upstairs
WEAK
executive suite front office micro management person upstairs top brass
Antonyms
WEAK
employees mismanagement

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“It was a shot to the heart and the chest and the mainframe with Luka,” James told reporters.

From Los Angeles Times • Apr. 9, 2026

In February, IBM stock posted its worst decline in 25 years—tumbling sharply on news that Anthropic had released AI tools that could help with modernizing Cobol, a programming language mainly run on IBM mainframe computers.

From The Wall Street Journal • Mar. 17, 2026

“The mainframe serves as the backbone for the world’s largest enterprises managing the most complex and critical workloads,” Woodring wrote, ticking off banking systems, airline reservations, and transaction processing as a few examples.

From Barron's • Feb. 25, 2026

“But the COBOL-based mainframe remains deeply embedded in large enterprises.”

From Barron's • Feb. 25, 2026

Once a program was ready, you walked over to whatever mainframe computer you had access to and gave the stack of cards to an operator.

From "Outliers" by Malcolm Gladwell

Vocabulary lists containing mainframe

Computer Science and Technology - Middle School

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Computer Science and Technology - High School

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