a long rigid piece of wood, metal, or similar material, typically used as an obstruction, fastening, or weapon

an iron bar

bars on the windows

an establishment where alcohol and sometimes other refreshments are served

a small friendly bar open all day

a counter in a pub, cafe, or other establishment across which drinks or refreshments are served

standing at the bar

a barrier or restriction to an action or advance

political differences are not necessarily a bar to a good relationship

any of the short sections or measures, typically of equal time value, into which a piece of music is divided, shown on a score by vertical lines across the stave

the opening bars of the first hymn

a partition in a court room, now usually notional, beyond which most people may not pass and at which an accused person stands

the prisoner at the bar

the profession of barrister

his dismissal from the Singapore Bar

fasten (something, especially a door or window) with a bar or bars

she bolted and barred the door

prevent or prohibit (someone) from doing something or from going somewhere

she is barred from leaving the country

mark (something) with bars or stripes

his face was barred with light

except for

his kids were all gone now, bar one

a unit of pressure equivalent to a hundred thousand newtons per square metre or approximately one atmosphere