Princeton's WordNet
surveil, follow, survey(verb)
keep under surveillance
Synonyms:
take after, watch, watch over, fall out, stick with, keep up, be, comply, succeed, appraise, adopt, observe, play along, abide by, travel along, come after, go over, trace, follow, surveil, accompany, come, postdate, pursue, keep abreast, stick to, survey, espouse, review, conform to, keep an eye on
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