Webster's Revised Unabridged Dictionary · 1913

Sweet

Sweet , adjective

[Old English swete, swote, sote, Anglo-Saxon swēte; akin to OFries. swēte, Old Saxon swōti, Dutch zoet, German suss, Old High German suozi, Icelandic saetr, soetr, Swedish sot, Danish sod, Gothic suts, Latin suavis, for suadvis, Greek {not transcribed}, Sanskrit svādu sweet, svad, svād, to sweeten. r175. Compare Assuage, Suave, Suasion.]

1.
Having an agreeable taste or flavor such as that of sugar; saccharine; -- opposed to sour and bitter; as, a sweet beverage; sweet fruits; sweet oranges.
2.
Pleasing to the smell; fragrant; redolent; balmy; as, a sweet rose; sweet odor; sweet incense.
The breath of these flowers is sweet to me. — Longfellow
3.
Pleasing to the ear; soft; melodious; harmonious; as, the sweet notes of a flute or an organ; sweet music; a sweet voice; a sweet singer.
To make his English sweet upon his tongue. — Chaucer
A voice sweet, tremulous, but powerful. — Hawthorne
4.
Pleasing to the eye; beautiful; mild and attractive; fair; as, a sweet face; a sweet color or complexion.
Sweet interchange Of hill and valley, rivers, woods, and plains. — Milton
5.
Fresh; not salt or brackish; as, sweet water. — Bacon
6.
Not changed from a sound or wholesome state. Specifically: (a) Not sour; as, sweet milk or bread. (b) Not state; not putrescent or putrid; not rancid; as, sweet butter; sweet meat or fish.
7.
Pleasing to the mind; mild; gentle; calm; amiable; winning; persuasive; as, sweet manners.
Canst thou bind the sweet influence of Pleiades? — Job xxxviii. 31
Mildness and sweet reasonableness is the one established rule of Christian working. — M. Arnold

Sweet is often used in the formation of self-explaining compounds; as, sweet-blossomed, sweet-featured, sweet-smelling, sweet-tempered, sweet-toned, etc.

Collocations (32)
Sweet alyssum (Botany) , See Alyssum.
Sweet apple (Botany) , (a) Any apple of sweet flavor. (b) See Sweet-sop.
Sweet bay (Botany) , (a) The laurel (Laurus nobilis). (b) Swamp sassafras.
Sweet calabash (Botany) , a plant of the genus Passiflora (Passiflora maliformis) growing in the West Indies, and producing a roundish, edible fruit, the size of an apple.
Sweet cicely (Botany) , (a) Either of the North American plants of the umbelliferous genus Osmorrhiza having aromatic roots and seeds, and white flowers. — Gray (b) A plant of the genus Myrrhis (Myrrhis odorata) growing in England.
Sweet calamus or Sweet cane (Botany) , Same as Sweet flag, below.
Sweet Cistus (Botany) , an evergreen shrub (Cistus Ladanum) from which the gum ladanum is obtained.
Sweet clover (Botany) , See Melilot.
Sweet coltsfoot (Botany) , a kind of butterbur (Petasites sagittata) found in Western North America.
Sweet corn (Botany) , a variety of the maize of a sweet taste. See the Note under Corn.
Sweet fern (Botany) , a small North American shrub (Comptonia asplenifolia syn. Myrica asplenifolia) having sweet-scented or aromatic leaves resembling fern leaves.
Sweet flag (Botany) , an endogenous plant (Acorus Calamus) having long flaglike leaves and a rootstock of a pungent aromatic taste. It is found in wet places in Europe and America. See Calamus, 2.
Sweet gale (Botany) , a shrub (Myrica Gale) having bitter fragrant leaves; -- also called sweet willow, and Dutch myrtle. See 5th Gale.
Sweet grass (Botany) , holy, or Seneca, grass.
Sweet gum (Botany) , an American tree (Liquidambar styraciflua). See Liquidambar.
Sweet herbs , fragrant herbs cultivated for culinary purposes.
Sweet John (Botany) , a variety of the sweet William.
Sweet leaf (Botany) , horse sugar. See under Horse.
Sweet marjoram (Botany) , See Marjoram.
Sweet marten (Zoology) , the pine marten.
Sweet maudlin (Botany) , a composite plant (Achillea Ageratum) allied to milfoil.
Sweet oil , olive oil.
Sweet pea (Botany) , See under Pea.
Sweet potato (Botany) , See under Potato.
Sweet rush (Botany) , sweet flag.
Sweet spirits of niter (Medicine Chemistry) , See Spirit of nitrous ether, under Spirit.
Sweet sultan (Botany) , an annual composite plant (Centaurea moschata), also, the yellow-flowered (Centaurea odorata); -- called also sultan flower.
Sweet tooth , an especial fondness for sweet things or for sweetmeats. [Colloquial]
Sweet William (Botany) , A species of pink (Dianthus barbatus) of many varieties. The willow warbler. The European goldfinch; -- called also sweet Billy. [Provincial English]
Sweet willow (Botany) , sweet gale.
Sweet wine , See Dry wine, under Dry.
To be sweet on , to have a particular fondness for, or special interest in, as a young man for a young woman. [Colloquial] — Thackeray

Sweet , noun

1.
That which is sweet to the taste; -- used chiefly in the plural.
(a)
Confectionery, sweetmeats, preserves, etc.
(b)
Home-made wines, cordials, metheglin, etc.
2.
That which is sweet or pleasant in odor; a perfume.
A wilderness of sweets. — Milton
3.
That which is pleasing or grateful to the mind; as, the sweets of domestic life.
A little bitter mingled in our cup leaves no relish of the sweet. — Locke
4.
One who is dear to another; a darling; -- a term of endearment.
Wherefore frowns my sweet? — B. Jonson

Sweet , adverb

Sweetly. — Shakespeare

Sweet , transitive verb

To sweeten. [Obsolete] — Udall