Similar words
Lektion
Unterricht is the general word for lessons/classes/instruction; Lektion is one specific lesson, in a textbook or in life.
Similar in other languages
English
lesson
lesson is the English word for the same thing — both mean "lessons, instruction."
Practice
1 What does Unterricht mean?
lessons, classes, instruction
2 Fill the gap: Der ___ beginnt um acht Uhr.
Full sentence: Der Unterricht beginnt um acht Uhr. (Classes start at eight o'clock.)
3 Which fingerprint chart matches Unterricht?
Unterricht: neutral register, core frequency, general domain, neutral connotation.