It's a (present progressive) verb.
part of speech
Adjective
What part of speech is thaw
The part of speech for oscillate is verb.
An adjective is a part of speech.
My heart was churning like a tempest in a teacup. Who is churning your butter?
Chewing and mouth movements are part of mechanical digestion.
That would be the stomach.
The figure of speech "his stomach rolls over then settles into a dull churning" conveys a sense of anxiety or unease. The imagery of the stomach rolling over suggests an initial jolt of discomfort or fear, often associated with nervousness. The subsequent "dull churning" indicates a lingering feeling of tension or worry that persists, highlighting the emotional turmoil the person is experiencing. Overall, it vividly illustrates a visceral reaction to stress or apprehension.
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
My stomach was churning after eating that spicy Mexican food.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.