Seal

Dichtung

(something designed to prevent leaking)

Dichtung

(tight closure)

Petschaft

(facsimile of an impression of such stamp)

Robbe

(pinniped)

Seehund

(pinniped)

Siegel

(stamp used to impress a design on a soft substance)

Siegel

(facsimile of an impression of such stamp)

Siegel

(something which will be visibly damaged when a covering or container is opened)

Siegel

(tight closure)

Stempel

(stamp used to impress a design on a soft substance)

abdichten

(to close securely)

dichten

(to close securely)

versiegeln

(to place a seal on (a document))

versiegeln

(to close securely)