1highest in position, rank, or degree:the top button of his shirta top executive
2chiefly British furthest away from the speaker or a point of reference:the top end of Fulham Road
at the most:some civil servant earning twenty-eight thousand a year, tops
1 [usually in singular] the highest or uppermost point, part, or surface of something:Doreen stood at the top of the stairsfill the cup almost to the top [in combination]:the springy turf of the clifftop
(usually tops) the leaves, stems, and shoots of a plant, especially those of a vegetable grown for its root:some growers snip off the carrot’s green tops in the field
chiefly British the uppermost creamy layer of milk.
2a thing or part placed on, fitted to, or covering the upper part of something, in particular:
a garment covering the upper part of the body and worn with a skirt, trousers, or shorts:he was wearing a hooded topshe bought a couple of new tops
a lid, cover, or cap:beer-bottle tops
(in a sailing ship) a platform around the head of each of the lower masts, serving to extend the topmast rigging.
3 (the top) the highest or most important rank, level, or position:her talent will take her right to the topthe people at the top must be competent
the utmost degree or the highest level:she shouted at the top of her voice
(tops) informal a person or thing regarded as particularly good:professionally you’re the tops
British the highest gear of a motor vehicle:long gradients can be surmounted in top
[mass noun] the high-frequency component of reproduced sound.
4chiefly British the end of something that is furthest from the speaker or a point of reference:the bus shelter at the top of the road
1finish something in a memorable or notable way:the festive celebration was topped off with the awarding of prizes
2US informal fill up a partly full tank with fuel:check the fluid reservoir and top it off if necessary
reach an upper limit:collectors whose budgets tend to top out at about $50,000
top something out
put the highest structural feature on a building, typically as a ceremony to mark the building’s completion:most of the staff turned out to watch the reactor being topped out (as noun topping out)Councillor Smith performed the topping out ceremony
top someone up
informal refill a partly full glass or cup for someone:can I top you up, Mr Willoughby?
top something up
add to a number or amount to bring it up to a certain level:a 0.5 per cent bonus is offered to top up savings rates
fill up a glass or other partly full container:he topped up our glasses and filled his own
add credit to a pay-as-you-go mobile phone account.