one of the surfaces forming the outside of or bounding a thing, or one of the lines bounding a geometric figure.

either of the two broad surfaces of a thin, flat object, as a door, a piece of paper, etc.

one of the lateral surfaces of an object, as opposed to the front, back, top, and bottom.

either of the two lateral parts or areas of a thing

the right side and the left side.

either lateral half of the body, esp. of the trunk, of a human or animal.

the dressed, lengthwise half of an animal's body, as of beef or pork, used for food.

an aspect or phase, esp. as contrasted with another aspect or phase

to consider all sides of a problem.

region, direction, or position with reference to a central line, space, or point

the east side of a city.

a slope, as of a hill.

one of two or more contesting teams, groups, parties, etc.

Our side won the baseball game.

the position, course, or part of a person or group opposing another

I am on your side in this issue.

line of descent through either the father or the mother

grandparents on one's maternal side.

the space immediately adjacent to something or someone indicated

Stand at my side.

Informal . a side dish, as in a restaurant

I'll have a hamburger and a side of French fries.

Usually, sides. Theater .

pages of a script containing only the lines and cues of a specific role to be learned by a performer.

the lines of the role.

Nautical . the hull portion that is normally out of the water, located between the stem and stern to port or starboard.

Billiards . English ( def. 8 ) .

Slang . a phonograph record.

Chiefly British Slang .

affected manner; pretension; assumed haughtiness

to put on side.

impudence; gall

He has a lot of side.

on the (specified) side, rather more than less; tending toward (the quality or condition specified)

This cake is a little on the sweet side.

being at or on one side

the side aisles of a theater.

coming from one side.

directed toward one side

a side blow.

subordinate or incidental

a side issue.

side with or against, to favor or support or refuse to support one group, opinion, etc., against opposition; take sides, as in a dispute

He always sides with the underdog.

on the side

Informal .

separate from the main issue or point of interest.

in addition to one's regular, or known work, interest, relationships, etc.

She tried selling cosmetics on the side. He dates another girl on the side.

as a side dish

a hamburger with French fries on the side.

side by side

next to one another; together.

closely associated or related; in proximity

A divided city in which democracy and communism must live side by side.

take sides

to give one's support to one person or group in a dispute; be partial to one side

We were careful not to take sides for fear of getting personally involved.

the far side

the farther or opposite side

the far side of the moon.

adjective

important , major , serious

noun

extremity , inside , middle , torso

adjective

ancillary , incidental , indirect , lateral , lesser , marginal , not the main , oblique , off-center , postern , roundabout , secondary , sidelong , sideward , sideways , sidewise , skirting , subordinate , subsidiary , superficial , collateral , homonymous , ipsilateral , juxtaposed , juxtapositional , parallel , unilateral

noun

aspect , attitude , border , bottom , boundary , direction , disposition , division , elevation , face , facet , flank , front , hand , haunch , jamb , lee , limit , loin , margin , part , perimeter , periphery , posture , quarter , rear , rim , sector , stance , stand , surface , top , verge , view , wing , angle , appearance , belief , light , opinion , outlook , phase , position , slant , standpoint , viewpoint , behalf , belligerent , camp , cause , combatant , competition , contestant , crew , enemy , faction , foe , interest , party , rival , sect , team , frame of reference , regard , respect , broadside , profile

verb

clad , cover , sheathe , skin

phrasal verb

advocate , back , champion , endorse , get behind , plump for , recommend , stand behind , stand by , uphold