Definitions of tight:

• adjective:   of such close construction as to be impermeable

  Example: "A tight roof"

• adjective:   closely constrained or constricted or constricting

  Example: "Tight skirts"

• adjective:   securely or solidly fixed in place; rigid

  Example: "The bolts are tight"

• adjective:   set so close together as to be invulnerable to penetration

  Example: "In tight formation"

• adjective:   affected by scarcity and expensive to borrow

  Example: "Tight money"

• adjective:   packed closely together

  Example: "The stood in a tight little group"

• adjective:   pressed tightly together
• adjective:   of textiles

  Example: "Smooth percale with a very tight weave"

• adjective:   pulled or drawn tight

  Example: "A tight drumhead"

• adjective:   exasperatingly difficult to handle or circumvent

  Example: "A good man to have on your side in a tight situation"

• adjective:   (of a contest or contestants) evenly matched

  Example: "A tight game"

• adjective:   very drunk
• adjective:   demanding strict attention to rules and procedures

  Example: "Tight security"

• adjective:   used of persons or behavior; characterized by or indicative of lack of generosity
• adverb:   firmly or tightly

  Example: "Held tight"

• adverb:   in an attentive manner