What's the difference between toast and tost?

Toast

Definition:

(v. t.) To dry and brown by the heat of a fire; as, to toast bread.
(v. t.) To warm thoroughly; as, to toast the feet.
(v. t.) To name when a health is proposed to be drunk; to drink to the health, or in honor, of; as, to toast a lady.
(v.) Bread dried and browned before a fire, usually in slices; also, a kind of food prepared by putting slices of toasted bread into milk, gravy, etc.
(v.) A lady in honor of whom persons or a company are invited to drink; -- so called because toasts were formerly put into the liquor, as a great delicacy.
(v.) Hence, any person, especially a person of distinction, in honor of whom a health is drunk; hence, also, anything so commemorated; a sentiment, as "The land we live in," "The day we celebrate," etc.

Example Sentences:

(1) The favorable effects of up to 25% toasted soybean meal and 3% licorice root extract on the levels of the four enzymes, without unfavorable changes in clinical parameters, might account in part for the chemopreventive activities of these additives.
(2) As the clock struck and glasses clinked, we toasted the new.
(3) Fifty friends and family came here to his wake and toasted his memory with vintage jeroboams of La Tâche, perhaps the most distinguished of all burgundies.
(4) However, even if you prefer Marmite to marmalade on your toast, citrus peel is a powerful tool in the kitchen, especially at this time of year, when bright, fresh flavours are at a premium.
(5) The company previously attracted heavy criticism with plans to eliminate the morning perk of free tea and toast handed out to staff across 230 stores.
(6) Downstairs I had black coffee, kippers, and brown toast in the breakfast room.
(7) Eat Natural toasted buckwheat muesli, £3 Breakfast choices can be particularly limited if you're gluten-free – this muesli shows they don't have to be.
(8) English wine is to be the toast of the country’s farmers this week, with more than £100m in sales expected this year for sparkling and still varieties combined, the environment secretary will announce on Wednesday.
(9) 42 mins: Lovely play by Dindane on the right wing, jinking inside and leaving Coentrao (who has terrible golden-toasted blond highlights from 1986) on his backside.
(10) If it was for print, I could have written about the toast.
(11) ‘We were simple as doves, wise as serpents’: Portugal toast Euro 2016 win Read more Has any player been through as many contrasting emotions in the space of a major final?
(12) Four severely and multiply handicapped students were trained to perform four tasks: (a) making toast, (b) making popcorn, (c) operating a clothes dryer, and (d) operating a washing machine.
(13) After the feeding of untoasted soybean oilmeal a significant increase of the secretion volume and of protein outpour could be observed in contrast to toasted soybean oilmeal within 24 h. The heat-labile soybean trypsin inhibitor also caused an activity increase of the pancreatic enzymes.
(14) As for Mr Mitchell, in private his cabinet colleagues were saying that he was "toast".
(15) But there was also a diversion into why, across the industrialised world, the numbers of diagnosed autistic people have increased, and two sentences that caused me to spit out my toast.
(16) But someone should dig up the pictures of David and Mirket as they toasted the launch of their new party.
(17) Bidisha : Two sexist remarks and one misogynist one At a major literary festival, before an event about military fiction, a posh famous English author smirked to me, "What's the difference between a woman and a piece of toast?
(18) I wish I could be there with you to raise a toast, but I’m in New Orleans, poor me.
(19) He is one of life’s natural addicts – not just drugs, but sex, work, success, avocado on toast.
(20) On approaching the nursing station, they had found a staff member enjoying tea and toast with her feet up on a chair.