'-oast' is not a suffix*.
However, here are some words that end with -oast
*See Related links below for more information.
Some words that end or with suffix cain: cocain. marocain.
Words with the suffix ance:acceptanceappearancearroganceassistanceclearancecompliancecontinuancedisappearancedistanceeleganceentrancegrievancemaintenanceperformancepredominanceresistancetolerancesubstancetemperanceviligance
biography
Some words with suffix scious: conscious. subconscious. hyperconscious. semiconscious. overconscious. preconscious. unconscious.
untill andStandstillIntertillRedistillRototillDistillInstillStill
Some words that end with the suffix 'fy' are:acidify.amplify.beautify.belfry.calcify.certify.clarify.classify.detoxify.dignify.electrify.emulsify.falsify.fortify.glorify.horrify.identify.intensify.justify.leafy.liquefy.magnify.mystify.notify.nullify.objectify.pacify.purify.qualify.quantify.ratify.rectify.sanctify.solidify.terrify.testify.typify.unify.verify.versify.vilify.vivify.
Some words that end or with suffix cain: cocain. marocain.
Words with the suffix ance:acceptanceappearancearroganceassistanceclearancecompliancecontinuancedisappearancedistanceeleganceentrancegrievancemaintenanceperformancepredominanceresistancetolerancesubstancetemperanceviligance
-idle isn't a suffix. There are words that end with -idle, like bridle, but it isn't a suffix.
Some words ending in the suffix -side are:alongsidebesideinsideoutside
altitudeattitudeaptitudebeatitudeconcludecrudeeludeexudefortitudegratitudehackitudelatitudelongitudelassitudemultitudesolitude
I mean that give me a list of words that have the suffix den in it
There are so many words that end with the suffix wise. Some of these words include likewise, clockwise, otherwise and so much more.
darling
death
Economy
geology