–noun

an Old English bard or poet.

Synonym – bard or poet

Antonym – illiterate (possibly)

mead

–noun

an alcoholic liquor made by fermenting honey and water.

Synonym – alcohol

Antonym – non-alcoholic (possibly)

sentinel

–noun

a person or thing that watches or stands as if watching.

Synonym – sentry or guard

Antonym – intruder (possibly)

The dictionary will supply meanings.

The thesaurus will supply synonyms.

– synonyms: jongleur, minstrel, troubadour, balladeer, balladmonger, bard, elegist, folk singer, laureate, librettist, maker, modernist, poet.

– antonyms: barbarian, boeotian, boor, bostoon, brute, buzzard, cad, cave-dweller, caveman, four-letter man, gazooney, holiday-maker, hun.

mead

– synonyms: field, pasture, grassland, lea, brew, green, hydromel, pasturage, sod, hayfield, heather, lawn.
– antonyms: acid wine, bally, barrow, ben, berg, chute, fell, flat wine, heap, isehill, kop, lemon.

sentinel

– synonyms: guard, sentry, watch, lookout, picket, watchman, protector, scout, patrol, spotter, keeper, look-out, lookout man, watchdog, custodian.
– antonyms: attacker, criminal, enemy, Attacking, loiterer, thief, assailant, assault, assaulter, coming into attack.

sentinel: one who stands guard or watch–sentry or soldier

Random House Webster’s Dictionary copyright 1993