| grate1 |
a frame of crossed or parallel metal bars used as a covering or guard over an opening. [1/2 definitions] |
| grating1 |
a frame of bars that covers an opening; grate. |
| hatch2 |
an opening in the floor, roof, or side of a building or vehicle. Hatches are often found on ships and allow passengers or cargo to pass through. [2 definitions] |
| hole |
an opening or hollow cavity in something. [1/3 definitions] |
| hourglass |
an instrument used to measure time that sends sand through a narrow opening between two larger glass bulbs. It takes exactly one hour for the sand to pass from one bulb to the other. |
| hum |
to make the sound of a song without opening the lips. [1/4 definitions] |
| icon |
on a phone or computer display, a small drawing that is used as a symbol. Clicking on the symbol requests a certain action from the computer, such as opening a file, taking a user to a location, or playing an audio. [1/3 definitions] |
| jet1 |
a stream of liquid or gas shooting from an opening, usually with great pressure. [1/3 definitions] |
| jug |
a container for holding liquids. A jug usually has a handle and a narrow spout or opening. [1/2 definitions] |
| leak |
an opening or crack that lets something pass out or in by accident. [3/5 definitions] |
| lip |
the edge of any hole or opening. [1/3 definitions] |
| lock1 |
a mechanical device for keeping others from opening a door, window, or a safe. Locks are usually opened with a key or a combination. [1/5 definitions] |
| manhole |
an opening in a street large enough for a person to climb into to make repairs underneath the street. A manhole is usually covered by a lid. |
| mouth |
the opening in the face through which one eats, breathes, and makes sounds. [3/6 definitions] |
| outlet |
an opening through which something is let out or allowed to escape; vent. [1/4 definitions] |
| overture |
an opening move to begin something. [1/2 definitions] |
| peep1 |
to look quickly or secretly through a narrow opening or from a hiding place. [1/3 definitions] |
| plug |
an object made of cork, rubber, or other material used to block an opening. [1/4 definitions] |
| pore2 |
a tiny opening in the skin of an animal or outer surface of a plant through which air, water, or sweat may pass. |
| porthole |
a small opening or window in the side of a ship or airplane. |
| pupil2 |
the small, dark opening in the center of the eye. Light passes through the pupil into the eye. |