smartˈy or smartˈie noun (usu ironic or contemptuous)

A would-be smart person

smart Alˈick, smart Alˈeck, smart Alˈec or smart alec noun

A would-be clever person or one too clever for their own good (also adjective, with hyphen)

smartˈ-alecky adjective

smartˈass or smartˈarse noun (derog sl)

A smarty (also adjective)

SMART® board noun

A brand of interactive whiteboard (qv under white)

smart bomb or smart missile noun

A bomb or missile that is able to alter its direction and/or find its target using computer-aided or electronically-controlled guidance and detection systems

smart card noun

A plastic card like a banker's card fitted with a microprocessor (including a memory) rather than a magnetic strip, used in commercial transactions, telecommunications, etc, its design intended to combat fraud

smart drug noun

A non-technical name for a drug that can radically enhance mental powers, a cognitive enhancer

smart missile see smart bomb above.

smart money noun

1. Money staked or invested by experienced or clever gamblers or investors
2. The people staking or investing this money
3. Money paid by a recruit for his release before being sworn in (obsolete)
4. Money paid for escape from any unpleasant situation or engagement
5. Excessive damages
6. Money allowed to soldiers and sailors for wounds, or to employees for injuries received (obsolete)

smartˈphone or smart phone noun

1. A portable device combining a mobile phone and a computer
2. A telephone with electronically-controlled automatic dialling

smartˈ-tickˈet noun (obsolete)

A certificate granted to someone entitled to smart money

smartˈwatch noun

A wristwatch that can perform some of the functions of a computer

smartˈweed noun

Water pepper, from its acridity

smartˈypants or smartˈy-boots singular noun (informal; pl the same)

A smarty

look smart (informal)

To be quick, hurry

smart sanctions

Sanctions that are intended to coerce the government of a country without causing hardship to the civilian population