light; well-lit; bright (of a colour); brightly-coloured; cheerful; bright; encouraging (for the future of a project, etc.)
to start work (on); to undertake; to start committing a crime; embarkation; launch
land mine; topic that sets someone off; sensitive topic; something that seems fine at first but turns out to be very bad (e.g. product, business); booby trap
throwing oneself (e.g. into the water to commit suicide)
good story; heartwarming story; good prospect (e.g. marriage, business)
to smirk; to grin broadly
to give one's everything; to do one's best
proof; testimony; demonstration; verification; certification
spread; extension; influence; aftereffect; ripple
earnest; sincere; pressing; urgent; pertinent; appropriate