to put medicine into someone with a syringe

a period of time during which important, significant changes take place

a problem that requires thought and skill to be solved

to prepare a book, journal, magazine and make it available

the act of putting something new in the place of something that is old, broken or missing

a sum total amount of something

To apply a particular idea to a large group

Showing intelligence; quick to understand or learn

an animal that is killed and eaten by another animal

standard used to make judgments or decisions