Thousands of words have entered the language in the past 100 years. Here is a partial list:

• x-ray, or röntgenograph(November 8, 1895, by Röntgen)
• radar (1941) from Radio Detection And Ranging
• laser (1960) from Light Amplification by Stimulated Emission of Radiation
• blackhole (1968)
• meme (1976)
• prion (1982)
• lidar (late 90s) from Light Detection And Ranging
• Internet (1974)
• hyperspace (1934)
• robotics (1941)
• waldo (1942)
• ansible (1966)
• phaser (1966)
• ringworld (1971)
• replicant (1982)
• cyberspace (1984)
• xenocide (1991)
• metaverse (1992)
• alien space bats (1998)
• teleojuxtaposition (2003)
• carpetbagging (19th century)
• genocide (1943)
• Dixiecrat (1948)
• meritocracy (1958)
• pro-life (1961)
• homophobia (1969)
• Californication (1970s)
• heterosexism (1979)
• glocalisation (1980s)
• astroturfing (1986)
• Islamophobia (1991)
• fauxtography (1996)
• corporatocracy (2000s)
• Islamofascism (2001)
• santorum (2003)
• Chindia (2004)
• Saddlebacking (2009)
• Accenture (2001), derived from 'Accent on the future'
• Acette (2002), derived from 'ace', meaning expertise, and the encapsulating suffix 'ette'; when read together as aye~set signifying 'expertise encapsulated'.
• Protiviti (2002), derived from professionalism and proactivity as well as independence and integrity.
• Bauhaus (early 20th century)
• blobject (1990s)
• fabject (2004), a fabricated 3-D object
• kirkyan (2006)
• moin (early 20th century)
• prequel (1958)
• posterized (c. 1980s) ("posterize" also has existed for some time as a term for an image-editing technique; its neologistic sports usage is completely unrelated)
• queercore (mid 1980s)
• blog (late 1990s)
• chav (early 2000s)
• webinar (early 2000s)
• truthiness (2005) (already existed as an obscure word previously recorded by the Oxford English Dictionary, but its 2005 usage on the Colbert Report was a neologistic one, with a new definition)
• fauxhawk (late 1990s)
• aspirin
• hoover
• laundromat
• linguistics
• retronym (popularized in 1980)
• backronym (1983)
• aptronym (2003; popularized by Franklin Pierce Adams)
• snowclone (2004)
• xerox
• googling
• photoshopping
• protologism (2005)