advertir, comprobar, confirmar, confrontar, constatar, cotejar, ensayar, estudiar, examinar, experimentar, intentar, observar, probar, verificar
averiguar, buscar, cachear, escudriñar, examinar, explorar, husmear, indagar, inquirir, inspeccionar, investigar, ojear, palpar, preguntar, rastrear, rebuscar, reconocer, registrar
esbozar, rasguñar
apreciar, calcular, considerar, ponderar, sopesar, valorar
abismarse, averiguar, buceador, explorar, investigar, profundizar