Definition from macmillandictionary.com
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a tall cliff, with a narrow footpath at its base
The pituitary gland is at the base of the brain.
The manufacturer’s name is printed on the base of the vase.
The statue stands on a large round base.
The base of your bed is as important as the mattress.
Terrorists had been using the warehouse as a base for their operations.
Hikers find this a convenient base for their mountain expeditions.
a US naval base
Income from magazine publishing provides the company with a strong financial base.
The report will give us a base for building a better healthcare system.
a broad base of experience/knowledge/expertise
They have built a loyal customer base.
The team has a base of strong players.
He has a large base of support within the party.
Britain’s manufacturing base was weak and deteriorating.
Use the stock as a base for your sauce.
paint with a water base