acechar, atisbar, avizorar, escrutar, espiar, observar, vigilar
averiguar, buscar, cachear, examinar, explorar, husmear, indagar, inquirir, inspeccionar, investigar, ojear, palpar, preguntar, rastrear, rebuscar, reconocer, registrar, tantear
escrutar, rebuscar
ahondar, analizar, averiguar, examinar, inquirir, investigar
airado, averiguar, escarbar, fisgar, indagar, inquirir, investigar
escrutar, espulgar, examinar, hurgar, indagar, opcional
explorar, otear, registrar