pose a threat to; present a danger to; " The pollution is endangering the crops"

to utter intentions of injury or punishment against:" He threatened me when I tried to call the police"

to be a menacing indication of something:" The clouds threaten rain"; " Danger threatens"

To utter threats against; to menace; to inspire with apprehension; to alarm, or attempt to alarm, as with the promise of something evil or disagreeable; to warn.

To exhibit the appearance of ( something evil or unpleasant) as approaching; to indicate as impending; to announce the conditional infliction of; as, to threaten war; to threaten death.

To use threats, or menaces; also, to have a threatening appearance.

Threatening.

To utter menaces; give notice of coming evil or danger.

To utter evil intentions against; be dangerous to; menace; foretell ( evil).

To utter menaces or threats against; be ominous or portentous of.

To employ threats; have a menacing aspect.

To menace, or announce an intention to punish or to harm; to attempt to terrify with threats; to charge with threats; to charge strictly; to exhibit the appearance of something unpleasant approaching.

To announce openly the purpose of inflicting punishment or injury on another; to attempt to terrify by threats or menaces; to present the appearance of coming evil; to exhibit the appearance of some coming danger or evil.

I'll advise 'em and you threaten 'em. – All-Wool Morrison by Holman Day

And I'm thinking that no foe will ever threaten any of the nations that fought against the Hun that does no threaten them a'! – Between You and Me by Sir Harry Lauder

What do you want to threaten me for? – A London Life; The Patagonia; The Liar; Mrs. Temperly by Henry James

But though no dangers seemed to threaten from without there were certain dangers within that made it most desirable for them to get away from Baker's and into their own little home without a moment's unnecessary delay. – The Princess Priscilla's Fortnight by Elizabeth von Arnim

What are your dangers which threaten the Establishment? – Political Pamphlets by George Saintsbury

With what d'ye threaten us? – The Lion's Skin by Rafael Sabatini

So, you threaten us, do you? – The Cricket by Marjorie Cooke

Some went so far as to threaten Johnson's life. – History of American Socialisms by John Humphrey Noyes

" Depart, or-" " Do you mean to threaten me?" – The Associate Hermits by Frank R. Stockton

" But place yourself here, and when Death comes- I expect him every moment- do not let him pluck the flower up, but threaten him that you will do the same with the others. – Andersen's Fairy Tales by Hans Christian Andersen

" You called me, and I am here, Helene," said the young man; " what do you fear, what dangers threaten you?" – The Regent's Daughter by Alexandre Dumas (Pere)

They threaten thee terrible things; for what reason I know not. – Stories from the Italian Poets: With Lives of the Writers, Vol. 2 by Leigh Hunt

Chatti, Mattiaci, and Usipi threaten Mainz. – Tacitus: The Histories, Volumes I and II by Caius Cornelius Tacitus

And so you threaten to send word around to the boys to knife me on election day? – Counsel for the Defense by Leroy Scott

" And still they threaten another strike," says the general manager. – The House of Torchy by Sewell Ford

Yet our basic goal remains the same: a peaceful world community of free and independent states- free to choose their own future and their own system, so long as it does not threaten the freedom of others. – Complete State of the Union Addresses from 1790 to the Present by Various