Carnegie Mellon professor Luis von Ahn was part of the team behind this app for learning a foreign language or 2
What is Duolingo?
Some plant roots exhibit "negative" this -ism, turning away from the source of light
What is phototropism?
I didn't try to call you because my phone only had 1 of these, which are related to decibels
What is a bar?
Hydra & Zakynthos are 2 of the around 200 inhabited islands of this European nation
What is Greece?
To cut, or a short segment of a movie or TV show
What is a clip?
Jerry Seinfeld & Tim Berners-Lee have done AMAs for this website
What is Reddit?
It means walking on 2 legs & it first set our ancestors apart from apes 6 million or so years ago
What is bipedalism?
A book you can read in one this, literally without getting up, is one under about 300 pages
What is a sitting?
Term for the line of latitude approximately 23 1/2 degrees north of the equator
What is the Tropic of Cancer?
Happening at present, or something that's measured in amperes
What is current?
Amazon owns this livestreaming service that hosts gamers like xQc
What is Twitch?
County fairs will sometimes have competitions for exceptionally large vegetables which express this trait.
What is giantism (or gigantism)?
It's a word for layers of thickness; paper towels & face masks can each be 2- or 3-
What is ply?
With about 15 million people, it's Canada's most populous province
What is Ontario?
The creator of a company, or to sink
What is founder?
Pay or get paid with this app whose name comes partly from the Latin for "to sell"
What is Venmo?
It's the word for tremors & other movement issues associated with a certain disease, even if not caused by it
What is parkinsonism?
3-letter word for very small or very early, as in these "hours of the morning"
What is wee?
Built in the 14th century, Sankore Mosque is found in this historic city of Mali
What is Timbuktu?
A substance applied to give a shine to a surface, or an explanation of a difficult passage in a text
What is a gloss?
This app with an alphabetically challenged animal in the name lets you post anonymously within a given distance away from others
What is YikTak?
The alligators at Louisiana's Audubon Zoo have this -ism, from the Greek for "white", a loss of melanin akin to albinism
What is leucism?
In many high schools 1 credit equals 120 hours in a classroom--a "unit" named for this 19th c. steel tycoon & philanthropist
Who is Carnegie?
It's from Chinese for "fragrant harbor" & in the 1840s it was ceded to the British
What is Hong Kong?
Pertaining to a group of god-like figures in greek mythology, or to describe something as having great strength or size
What is titanic?