The word "schooler" is relatively uncommon and has limited synonyms. However, one possible synonym for "schooler" is "student." This term refers to individuals who attend an educational institution and learn from teachers or professors. Other possible synonyms for "schooler" include "pupil," "learner," and "scholar." These words also describe a person who is actively engaged in learning. Another synonym for "schooler" is "attendee," which acknowledges the individual's participation in a learning environment, whether it is a formal or informal setting. While these synonyms may not be exact substitutions for "schooler," they capture the essence of someone who is pursuing knowledge and education.