Definition of "gull"

The tide was out, and we drew up amid the strong bracing smell of seaweed, with gulls screeching, wheeling around, and gliding on the wind.

1947 January and February, O. S. Nock, “"The Aberdonian" in Wartime”, in Railway Magazine, page 8

BENEDICK. [Aside] I should think this a gull, but that the white-bearded fellow speaks it: knavery cannot, sure, hide itself in such reverence.

1598–1599 (first performance), William Shakespeare, “Much Adoe about Nothing”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene iii]

You'll excuse me, sir, but as you are fresh, take care to avoid the gulls; they fly about here in large flocks, I assure you, and do no little mischief at times." "I never understood that gulls were birds of prey," said I.—"Only in Oxford, sir; and here, I assure you, they bite like hawks, and pick many a poor young gentleman as bare before his three years are expired, as the crows would a dead sheep upon a common. […] "

1825, Bernard Blackmantle, The English Spy

O, but to ha' gulled him / Had been a mastery.

1610 (first performance), Ben[jamin] Jonson, The Alchemist, London: […] Thomas Snodham, for Walter Burre, and are to be sold by Iohn Stepneth, […], published 1612; reprinted Menston, Yorkshire: The Scolar Press, 1970, (please specify the GB page), (please specify the scene number in lowercase Roman numerals)

The vulgar, gulled into rebellion, armed.

1660, John Dryden, Astraea Redux

I'm not gulling him for the emperor's service.

c. 1798, Samuel Taylor Coleridge, Wallenstein

[…] speak your curses outAgainst me, who would sooner crush and grindA brace of toads, than league with them to oppressAn innocent lady, gull an Emperor […]

1819, John Keats, Otho the Great, act IV, scene I, verse 162-165

She has done these things before and remembers now that she is good at them, often steadier than the men. In Berlin when Jack needed a spare girl Mary had kept watch, gulled room keys out of concierges, replaced stolen documents in dangerous desks, driven scared Joes to safe flats.

1986, John le Carré, A Perfect Spy