core

noun1 of 2

the central part of a fruit that contains the seeds; the central part of something

• “The company's core values were reflected in everything it did.”Tatoeba
• “We need to get to the core of the problem.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

verb2 of 2

To extract a sample with a drill.