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English Words Starting With G

5,448 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

gravitas
nounC2
/ˈɡravɪtas/A serious, dignified, and weighty manner or demeanour that commands respect.
gravitate
verbverb-intransitiveC1
/ˈɡræv.ɪ.teɪt/To be drawn towards a place, person, or thing, especially by a natural or powerful attraction or tendency.
gravitation
nounMedium
/ˌɡræv.ɪˈteɪ.ʃən/The fundamental physical force of attraction that exists between all objects with mass or energy, causing them to move toward each other.
gravitational collapse
nounC2
/ˌɡræv.ɪˈteɪ.ʃən.əl kəˈlæps/The inward fall of a massive celestial body under the force of its own gravity.
gravitational constant
nounC2
/ˌɡræv.ɪˌteɪ.ʃən.əl ˈkɒn.stənt/The universal constant (G) that appears in Newton's law of universal gravitation, quantifying the strength of the gravitational force between two objects.
gravitational field
nounLow
/ˌɡræv.ɪˌteɪ.ʃən.əl ˈfiːld/A region of space surrounding a massive body in which another body experiences a force of attraction due to gravity.
gravitational force
nounC1
/ˌɡræv.ɪˈteɪ.ʃən.əl ˈfɔːs/The natural phenomenon of attraction between physical objects with mass.
gravitational interaction
nounLow (C1+)
/ˌɡræv.ɪˈteɪ.ʃən.əl ˌɪn.tərˈæk.ʃən/The fundamental physical force of attraction that exists between all particles with mass.
gravitational lens
nounC2
/ˌɡræv.ɪˈteɪ.ʃən.əl ˈlenz/A massive celestial object (like a galaxy or black hole) whose gravity bends and focuses light from a more distant object behind it, creating magnified, distorted, or multiple images of the background object.
gravitational mass
nounVery low / Specialized
/ˌɡræv.ɪˌteɪ.ʃən.əl ˈmæs/A measure of the strength of an object's gravitational interaction with other objects; a property of physical matter that determines the force of its attraction in a gravitational field.
gravitational radius
nounC2
/ˌɡræv.ɪˈteɪ.ʃən.əl ˈreɪ.di.əs/The critical distance from the centre of a massive body within which the escape velocity equals the speed of light; the radius of a black hole's event horizon (Schwarzschild radius).
gravitational redshift
nounRare
/ˌɡræv.ɪˈteɪ.ʃən.əl ˈred.ʃɪft/A phenomenon in physics where light or other electromagnetic radiation from an object is increased in wavelength (shifted to the red end of the spectrum) due to the object's gravitational field.
gravitational wave
nounC2
/ˌɡræv.ɪˌteɪ.ʃən.əl ˈweɪv/A ripple in the fabric of spacetime, predicted by Einstein's theory of general relativity, caused by the acceleration of massive objects like black holes or neutron stars.
gravitino
nounVery Low
/ˌɡravɪˈtiːnəʊ/A hypothetical subatomic particle, proposed in supersymmetry theories, which is the hypothetical superpartner of the graviton.
graviton
nounVery Low (Technical/Specialised)
/ˈɡræv.ɪ.tɒn/A hypothetical elementary particle that mediates the force of gravity.
gravity
nounB2
/ˈɡræv.ə.ti/The force that attracts objects towards each other, especially towards the centre of the Earth.
gravity assist
nounLow
/ˈɡræv.ɪ.ti əˈsɪst/A maneuver where a spacecraft gains speed or changes direction by passing close to a planet or moon, using its gravity.
gravity cell
nounC2
/ˈɡræv.ə.ti ˌsel/An early type of primary battery (a cell that cannot be recharged) that uses gravity to keep two different liquids separated without a physical barrier.
gravity clock
nounC1
/ˈɡræv.ɪ.ti ˌklɒk/A clock, typically a pendulum clock, whose timekeeping mechanism is primarily regulated by the force of gravity acting on a weight.
gravity dam
nounC2 (Very Low Frequency - Technical/Specialist)
/ˈɡræv.ə.ti ˌdæm/A dam constructed from concrete or masonry that relies on its own weight and resistance to sliding to resist the horizontal pressure of water.

Showing 3841–3860 of 5448 words.