Definition of oakum
: loosely twisted hemp or jute fiber impregnated with tar or a tar derivative and used in caulking seams and packing joints
Recent Examples of oakum from the Web
Longtime DIY owners talk about pouring cement between the foundation rocks and buying oakum, sailor's tarry rope, to weave it between the logs to keep the wind out.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oakum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Learn More about oakum
Seen and Heard
What made you want to look up oakum? Please tell us where you read or heard it (including the quote, if possible).