To look at carefully to work out what is happening.

likely or prone to be affected by. conditionally upon. People who take part in experiments or tests. To cause to suffer or experience something.

in space separating things. In the space that separates two objects.

gladly received. used to greet someone in polite or friendly way. instance or manner of greeting someone. To greet someone who has just arrived.

thing that is needed or wanted. Demands that someone does some things.

May be true or likely, but is uncertain.

person or thing that generates something.

Next; the one after this. body of supporters or admirers. Next; the one after this. To understand something happening or being said.

very quick. occurrence of natural electrical discharge of very short duration and high voltage between cloud and ground or within cloud.

To understand or sympathize with, e.g. a problem.

To associate a thing with something else.

To keep your attention, concentration on one thing.

blown by wind with great force. control and operation of motor vehicle. To force to go somewhere or do or be something.

To insert or put something inside another thing.