This is the 3612th most frequent Spanish word.
marcan
"They mark" (third person plural conjugation of "marcar").
Here, 'marcan' illustrates indicating or defining something, specifically the path represented by the rules.
Las reglas marcan el camino a seguir.
The rules set out the path to follow.
In this example, 'marcan' refers to indicating or showing information, akin to marking or displaying something.
Los relojes marcan la hora exacta.
Clocks indicate the exact time.
In this sentence, 'marcan' is the conjugated form of the verb 'marcar' for the third person plural in the present indicative. It signifies taking action that results in a noticeable effect or change.