Sudden event needing an immediate action.

expressing doubt or choice between alternatives.

To hide or block something from being seen.

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. Over, in, across an entire thing or place.

To make something ready for use.

Established pattern or record.

Guard at an airport who checks passengers or their luggage at a security checkpoint.

showing of film, video, or television programme. To examine to find something, e.g. best candidate.

consequence, effect, or outcome of something. Final scores of competitions, elections or games. To be the outcome of other causes and effects.

To come after someone; be guided by someone.

Not getting annoyed when things take a long time. Person who receives medical treatment or care.

Space at the top of the stairs in a house/building. To (cause to) come down to the ground safely.

So remarkably different or sudden as to shock. To give someone a shock or surprise.

physical or mental feature which is regarded as indicating condition of disease. Signs that suggests that there are problems.

Collection of facts and details about something.