n. One that keeps guard; a sentry. tr.v. sen·ti·neled, sen·ti·nel·ing, sen·ti·nels or sen·ti·nelled or sen·ti·nel·ling 1. To watch over as a guard. 2. To provide with a guard. 3. To post as a guard. [French sentinelle, from Italian sentinella, probably from Old Italian sentina, vigilance, from sentire, to watch, from Latin sentīre, to feel; see sent- in the Appendix of Indo-European roots.] |
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