bi-/tri-
1. the prefix bi- means
2. the prefix tri- means
bi- : two
tri- : three
the prefix sub- means
under
the prefix multi- means
many
the prefix trans- means
across
the prefix inter- means
among / between
You should always wear a helmet when you ride your ____.
bicycle ( / tricycle)
Some marine biologists ride in a _____, a vehicle that can travel underwater.
submarine
When we ______ numbers in math class, we are using repeated addition of equal groups.
multiply
The caterpillar ______ into a butterfly.
transformed
I was trying to talk to my mom, but my little brother kept ____ me.
interrupting
A ____ is a shape with three sides and three vertices (corners).
triangle
In New York City, many people take the _______ to work. It is an underground train.
subway
Her outfit includes many colors. We can say that it is ______.
multicolored
To bring objects from one place to another is to _____.
transport
interviews
Three babies born at the same time are called _____.
triplets
The word for the captions at the bottom of the screen in TV shows and movies; they help Deaf people to understand parts of the show that have sound.
subtitles
______ art is art that uses one "medium"; for example, an art piece that includes both still pictures and videos.
multimedia
If someone needs help communicating with someone who speaks a different language, they might call a _____ who speaks both languages.
translator
I waited until the _____ to go to the bathroom during the play. (a break in between acts)
intermission
The photographer used a _____ to hold up the camera.
tripod
If something is fully covered with water, we say that it is ______.
submerged
A ______ organization includes several nations.
multinational
In a heart ____ surgery, the person receives a new heart from a donor.
transplant
There was some _____ with the radio, so I could not hear the songs clearly.
interference