This is the 3625th most frequent Spanish word.
militancia
Active membership or participation in a political, social, or ideological group.
Here, "militancia" is used to denote participation or activism within an environmental cause.
Su militancia en el movimiento ambiental refleja su compromiso con el medio ambiente.
Their involvement in the environmental movement reflects their commitment to the environment.
In this sentence, "militancia" refers to the act of being actively involved in a political or social group.
La militancia en el grupo político ayudó a organizar el evento.
The membership in the political group helped organize the event.
This use of "militancia" highlights its role as active participation or engagement aimed at societal impact.