TRENTON -- A fact is a fact, and calling falsehoods "alternative facts" doesn't make something a fact.

That was the message from Merriam-Webster to President Donald Trump's senior adviser, New Jersey native Kellyanne Conway, whom Trump tapped in December to serve as his counselor to the president.

The company that's most known for publishing dictionaries took to social media to troll Conway after she told NBC News' Chuck Todd on Sunday that the president's press secretary gave "alternative facts" when he berated the media for inauguration coverage.

Conway came to the defense of Sean Spicer, Trump's spokesman embraced a few easily disproved facts during his first press appearance in the White House's press briefing room.

"Don't be so overly dramatic about it, Chuck," Conway said Sunday on "Meet the Press."

"You're saying it's a falsehood, and they're giving -- our press secretary, Sean Spicer, gave alternative facts to that. But the point really is," she continued, before Todd cut her off.

"Wait a minute. Alternative facts? Alternative facts? Four of the five facts he uttered ... were just not true. Alternative facts are not facts; they're falsehoods," visibly exasperated Todd said.

With that, Merriam-Webster chimed in with a tweet.

📈A fact is a piece of information presented as having objective reality. https://t.co/gCKRZZm23c — Merriam-Webster (@MerriamWebster) January 22, 2017

Among the falsehoods Spicer embraced was a declaration about the size of the crowd in Washington D.C. for Trump's inauguration, which he said "was the largest audience to ever witness an inauguration -- period -- both in person and around the globe."

Pictures of the inauguration and data from Nielson for inauguration clearly show otherwise.

The Washington Post gave Spicer "four Pinocchios" for his false claims.

Matt Arco may be reached at marco@njadvancemedia.com. Follow him on Twitter @MatthewArco or on Facebook.