Knot:
(a) interlacing, twining, looping, etc.
(b) a group of persons.
Stern: firm, strict, uncompromising, harsh, hard etc.
Boom:
(a) deep, prolonged, resonant sound
(b) to progress or flourish
(c) to hit hard
Hatch:
(a) to bring forth, produce.
(b) derive, concoct
(c) to draw, cut, or engrave lines
Anchor:
(a) a person or thing that can be relied upon for support
(b) host of an event.