This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. One who boards, especially:

n. One who pays a stipulated sum in return for regular meals or for meals and lodging.

n. One who goes on board a vessel as part of an assault or military action: repel all boarders.

n. Sports A person who skis.

n. Sports One who rides a skateboard.

n. Sports One who uses a snowboard.

n. A pupil who lives at school during term time.

n. Someone who pays for meals and lodging in a house rather than a hotel.

n. A sailor attacking an enemy ship by boarding her, or one repelling such attempts by an enemy.

n. Someone who uses a snowboard

n. One who has food statedly at another's table, or meals and lodgings in his house, for pay, or compensation of any kind.

n. One who boards a ship; one selected to board an enemy's ship.

n. One who boards.

n. plural On a man-of-war, the officers and men detailed to attack an enemy by boarding. They are armed with cutlases and pistols.

n. a tenant in someone's house

n. a pupil who lives at school during term time

n. someone who forces their way aboard ship

"The only government that can secure the boarder is the Federal government."

tenant    renter    school-age child    pupil    schoolchild    interloper    trespasser    intruder   

boarding party    boarding house   

border    corder    disorder    order    recorder    reorder    warder   

lodger    triathlete    snowboarder    skier