The verb mull means to think deeply about something, the way you might mull over your choice of what college to attend.

When you mull something over, you ponder or seriously consider it. You could mull over what aid organization to donate money to following a natural disaster, or mull over what to study in college. People are most likely to mull over important decisions, but you can use the word mull, almost always with over, any time you're giving serious consideration to something. A completely different meaning of mull is "to heat, sweeten, and spice," as when you make mulled cider.

Primary Meanings of mull

reflect deeply on a subject
heat with sugar and spices to make a hot drink
a term used in Scottish names of promontories
Full Definitions of mull

v reflect deeply on a subject

“I mulled over the events of the afternoon”
chew over, contemplate, excogitate, meditate, mull over, muse, ponder, reflect, ruminate, speculate, think over
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think or reflect beforehand or in advance
theologise, theologize
make theoretical speculations about theology or discuss theological subjects
reflect on one's own thoughts and feelings
consider or ponder something carefully
consider carefully and deeply; reflect upon; turn over in one's mind
question, wonder
place in doubt or express doubtful speculation
be uncertain about; think about without fully understanding or being able to decide
consider, study
give careful consideration to
factor, factor in, factor out
consider as relevant when making a decision
compare, equate, liken
consider or describe as similar, equal, or analogous
have doubts about
Type of:
cerebrate, cogitate, think
use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

v heat with sugar and spices to make a hot drink

mulled cider”
Type of:
dulcify, dulcorate, edulcorate, sweeten
make sweeter in taste

n a term used in Scottish names of promontories

Type of:
foreland, head, headland, promontory
a natural elevation (especially a rocky one that juts out into the sea)

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