All make bold synonyms

verb make bold

• dare — If you do not dare to do something, you do not have enough courage to do it, or you do not want to do it because you fear the consequences. If you dare to do something, you do something which requires a lot of courage.
• operate — to work, perform, or function, as a machine does: This engine does not operate properly.
• dare — If you do not dare to do something, you do not have enough courage to do it, or you do not want to do it because you fear the consequences. If you dare to do something, you do something which requires a lot of courage.
• undertake — to take upon oneself, as a task, performance, etc.; attempt: She undertook the job of answering all the mail.
• attempt — If you make an attempt to do something, you try to do it, often without success.
• presume — to take for granted, assume, or suppose: I presume you're tired after your drive.
• stake — something that is wagered in a game, race, or contest.
• hazard — an unavoidable danger or risk, even though often foreseeable: The job was full of hazards.
• try — to attempt to do or accomplish: Try it before you say it's simple.
• brave — Someone who is brave is willing to do things which are dangerous, and does not show fear in difficult or dangerous situations.
• adventure — If someone has an adventure, they become involved in an unusual, exciting, and rather dangerous journey or series of events.
• venture — an undertaking involving uncertainty as to the outcome, especially a risky or dangerous one: a mountain-climbing venture.
• speculate — to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
• gamble — to play at any game of chance for money or other stakes.
• risk — exposure to the chance of injury or loss; a hazard or dangerous chance: It's not worth the risk.
• infringe — to commit a breach or infraction of; violate or transgress: to infringe a copyright; to infringe a rule.
• intrude — to thrust or bring in without invitation, permission, or welcome.
• impose — to lay on or set as something to be borne, endured, obeyed, fulfilled, paid, etc.: to impose taxes.
• jeopardize — to put in jeopardy; hazard; risk; imperil: He jeopardized his life every time he dived from the tower.
• feel — to perceive or examine by touch.
• wager — something risked or staked on an uncertain event; bet: to place a wager on a soccer match.
• defy — If you defy someone or something that is trying to make you behave in a particular way, you refuse to obey them and behave in that way.
• assay — An assay is a test of a substance to find out what chemicals it contains. It is usually carried out to find out how pure a substance is.
• chance — If there is a chance of something happening, it is possible that it will happen.
• imperil — to put in peril or danger; endanger.
• front — the foremost part or surface of anything.
• volunteer — a person who voluntarily offers himself or herself for a service or undertaking.
• advance — To advance means to move forward, often in order to attack someone.
• challenge — A challenge is something new and difficult which requires great effort and determination.
• grope — to feel about with the hands; feel one's way: I had to grope around in the darkness before I found the light switch.
• bet — If you bet on the result of a horse race, football game, or other event, you give someone a sum of money which they give you back with extra money if the result is what you predicted, or which they keep if it is not.
• go ahead — permission or a signal to proceed: They got the go-ahead on the construction work.
• pluck up — to pull off or out from the place of growth, as fruit, flowers, feathers, etc.: to pluck feathers from a chicken.
• take a chance — act on a possibility
• take heart — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
• try one's hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
• get down — to receive or come to have possession, use, or enjoyment of: to get a birthday present; to get a pension.
• put up — planned beforehand in a secret or crafty manner: a put-up job.
• take a crack at — attempt sth
• dare say — to think likely; suppose
• go out on a limb — say sth daring
• lay open — to put or place in a horizontal position or position of rest; set down: to lay a book on a desk.
• make a stab at — to make an attempt at
• play for — sport: represent, be on the side of
• play the market — to speculate on a stock exchange
• try out — to attempt to do or accomplish: Try it before you say it's simple.
• stick one's neck out — the part of the body of an animal or human being that connects the head and the trunk.