Pledge to do something.
Engagement.
Duty.
Obligation to do something.
Does this help?
One of the quintisessential features of the Swahili city-states from 1000 to 1500 BC was their urban style. A few families made up the elite, ruling classes, while most people in the cities were less wealthy, working as craftsmen, artisans, clerks, and sailors. People in villages along the coast could also identify as Swahili.
Answer: The meaning is: sharing a common border; touching. (ADJECTIVE)
SYNONYMS (: adjacent · neighboring · adjoining near · nearby · close )
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Explanation: