event intended for public entertainment. (Animals) to indicate readiness for sex.

Moving very fast or occurring suddenly. occurrence of natural electrical discharge of very short duration and high voltage between cloud and ground or within cloud.

Change from one state, movement, place to another. undergo or cause to undergo process or period of transition.

used or accepted as normal or average. Official unit of measuring something.

thing chosen. Rights to buy or sell at a certain price and time. buy or sell option on.

serving or intended to regulate something.

Not of the same kind; unlike other things. alter coat of arms.

To rate something in importance or value.

action of moving in downward direction. To move something downward to the ground.

having resemblance in appearance, character, or quantity. person or thing similar to another.

Activity done to entertain an audience.

place, person, or thing from which something comes or can be obtained. obtain from particular source.

Believing something will probably happen. To believe something is probably going to happen.

Good result or effect, something advantageous. To have a good effect or be helpful.

To exchange one set of clothes for another.