firmly or closely fixed in place; not easily moved; secure

a tight knot.

drawn or stretched so as to be tense; taut.

affording little or no extra room; fitting closely, esp. too closely

a tight collar.

difficult to deal with or manage

to be in a tight situation.

of such close or compacted texture, or fitted together so closely, as to be impervious to water, air, steam, etc.

a good, tight roof.

concise; terse

a tight style of writing.

firm; rigid

his tight control of the company.

carefully arranged or organized and full; affording little leeway; compact

a tight schedule.

nearly even; close

a tight race.

Informal .

close, as friends; familiar or intimate.

united

The strikers are tight in their refusal to accept the proposed contract.

parsimonious; stingy.

Slang . drunk; tipsy.

characterized by scarcity or eager demand; costly; limited; restricted

a tight job market; tight money.

Journalism . (of a newspaper) having more news available than is required for or utilizable in a particular issue.

Baseball . inside ( def. 18 ) .

Scot. and North England . competent or skillful.

tidy.

neatly or well built or made.

in a tight manner; closely; firmly; securely; tensely

Shut the door tight. The shirt fit tight across the shoulders.

soundly or deeply

to sleep tight.

sit tight

to take no action.