Examlex
The luminosity class is assigned to a star by studying the absorption lines in the spectrum of the star.
Own Business
The act of focusing on one’s own tasks or affairs, not involving oneself in the matters of others.
Frustration
A feeling of dissatisfaction, often accompanied by anxiety or depression, resulting from unfulfilled needs or unresolved problems.
Daydreaming
The act of allowing one's thoughts to wander to unrelated and often fanciful themes or scenarios, not focused on the present task.
Flunking
Failing to achieve a passing grade or level in an academic setting or test.
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