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Definitions from the Web

Prefix: ob

Definition: A prefix typically indicating negation, reversal, or opposition.

Examples:

Noun:

1. The word "oblivion" is formed by adding the prefix ob to "līv-," meaning "to forget."
2. In the medical field, "obstruction" is a term that refers to a blockage of a passage or vessel.

Verb:

1. When you "obstruct" a path, you impede or block the way.
2. To "obscure" something is to make it unclear or difficult to understand.

Adjective:

1. The "obnoxious" behavior of that person is becoming increasingly unbearable.
2. She found the movie to be "obscure" as it left many questions unanswered.

Adverb:

1. The politician's claim was "obviously" false, contradicting concrete evidence.
2. The book was "obscenely" expensive, beyond the reach of most readers.

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