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English Words Starting With M

8,594 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)

millimole
nounC2
/ˈmɪlɪˌməʊl/A unit of measurement in chemistry and biology equal to one thousandth of a mole, used to express amounts of a chemical substance.
milline
nounLow-Mid
/ˈmɪlɪˌlaɪn/Belonging to or characteristic of the millennial generation (born approximately early 1980s to mid-1990s/early 2000s).
milliner
nounLow
/ˈmɪlɪnə/A person, historically often a woman, who designs, makes, trims, or sells women's hats.
millinery
nounC1
/ˈmɪlɪn(ə)ri/Hats, and other articles for the head, made or sold by a milliner; the business or work of a milliner.
milling
nounB2
/ˈmɪlɪŋ/The act of grinding or crushing a substance (especially grain) into smaller particles or powder using a machine or heavy tool.
milling machine
nounC1
/ˈmɪlɪŋ məˌʃiːn/A power-driven machine used for shaping solid materials, especially metal, by removing material with a rotating cutter.
millington
nounVery Low (as a proper noun, appears only in specific contexts).
/ˈmɪlɪŋtən/A proper noun, primarily a surname of English origin, or a toponym (place name).
million
adjectivedeterminernounA1
/ˈmɪljən/The number 1,000,000; a thousand thousands.
million electron volts
nounLow Frequency
/ˌmɪl.i.ən ɪˌlɛk.trɒn ˈvəʊlts/A unit of energy used in particle physics, equal to one million electronvolts. An electronvolt (eV) is the amount of kinetic energy gained by a single electron accelerating from rest through an electric potential difference of one volt.
millionaire
nounB1
/ˌmɪljəˈneə(r)/A person whose wealth amounts to at least one million units of currency (pounds, dollars, etc.).
millionairess
nounLow frequency, declining.
/ˌmɪljəˈneərəs/A woman who possesses wealth amounting to at least a million pounds, dollars, or units of another currency.
millionth
adjectivenounB1
/ˈmɪljənθ/The ordinal number corresponding to one million; 1,000,000th in a series. Also, one of a million equal parts.
millipede
nounC1
/ˈmɪl.ɪ.piːd/A small, long, segmented invertebrate animal with two pairs of legs on most of its body segments.
milliradian
nounVery Low
/ˌmɪlɪˈreɪdɪən/A unit of angular measurement equal to one thousandth of a radian.
millirem
nounLow/Very Low (Specialist Technical)
/ˈmɪl.ɪˌrem/A unit of radiation dose equivalent, equal to one thousandth of a rem.
milliroentgen
nounVery Rare
/ˌmɪlɪˈrɒntɡən/A unit of ionizing radiation dose equal to one thousandth of a roentgen (R).
millisecond
nounB2
/ˈmɪlɪˌsekənd/One thousandth (1/1000) of a second; a very brief unit of time measurement.
millivolt
nounC2
/ˈmɪlɪˌvəʊlt/A unit of electromotive force equal to one thousandth (0.001) of a volt.
milliwatt
nounC1/Technical
/ˈmɪlɪwɒt/A unit of power equal to one thousandth of a watt.
millpond
nounC1/C2
/ˈmɪlpɒnd/A pool of water created by a dam, originally to provide a steady flow of water to power a watermill.

Showing 5221–5240 of 8594 words.