investigación
/imbestiɡaˈθjon/ · A2 · noun · f
probe
🔎 investigación = investigate + -ción (English -tion): investigation
From Latin investigare, to track or trace, built on vestigium (footprint), the same root as English vestige. Spanish -ción regularly matches English -tion, and the word also covers academic research. Feminine: la investigación.