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factor in

British  

verb

  1. (tr, adverb) to take account of (something) when making a calculation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

factor in Idioms  
  1. Figure in, include as a basic element. For example, In preparing the schedule we factored in vacation and sick days. This term comes from mathematics. [Mid-1900s]


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.

See Examples For:

In some cities that are losing kids, the falling birthrate is a bigger factor in the drop.

From The Wall Street Journal Jul. 27, 2026

Your age, the size of your residence and the number of people living there should all factor in, she theorizes, with some extra leeway for those working in or adjacent to the book trade.

From Salon Jul. 23, 2026

The pace of reconstruction will "be a decisive factor in shaping the country's economic recovery and social outcomes," the World Bank said in a statement.

From Barron's Jul. 23, 2026

European football's governing body Uefa criticised Fifa's decision at the time, calling it "unprecedented, incomprehensible and unjustifiable", and the decision was a factor in the organisation's president Aleksander Ceferin not attending the World Cup final.

From BBC Jul. 21, 2026

What held the column of water together was a natural force, the resistance to the creation of a vacuum, and this force was a major factor in understanding the strength of materials.

From "The Invention of Science" by David Wootton

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