SINCE 1828

An Encyclopædia Britannica Company

Going Greek: 7 Words from the Greek Alphabet

When English borrows from another alphabet

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The Fossil Encased in "Case In Point"

"In point" only lives in this phrase.

Odd Habits and Quirks Quiz

Test your knowledge of strange human behaviors.

2017 Word of the Year: Behind the Scenes

How we chose 'feminism'

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'Venom' Trailer Drives Searches for 'Symbiote'

'an organism living in symbiosis'

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ubiquitous ugh ugly ultimate ultimately ultimatum ultra ultraconservatism ultraconservative ultraexpensive ultrahot ultramodern ultramodernist ultrapractical ultraprecision ultrasmart ultrathin umbra umbrage umpire unabashed unable unacceptable unacceptably unacclimated unaccompanied unaccountable unaccustomed unacquainted unadapted unadjusted unadorned unadulterated unaesthetic
unaffected unaffectedly unaided unalike unalloyed unalterable unambiguous unambivalent unanimity unanimous unanswerable unanticipated unappealing unappeasable unappetizing unappreciated unappreciative unapproachable unapt unarguable unarguably unashamed unasked unassailable unassisted unassuming unattached unattainable unattractive unauthentic unavailable unavailing unavoidable unavoidably
unaware unawareness unawares unbalance unbalanced unbaptized unbearable unbeatable unbeautiful unbecoming unbeknown unbeknownst unbelief unbelievable unbeliever unbelieving unbend unbending unbiased unbid unbidden unbind unblemished unblock unblushing unbodied unborn unbosom unbound unbounded unbraid unbridled

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