Converse of object

• wear: Shouldn't a mountain safety adviser wear a helmet at all times, even in bed?

• weld: Here is auto darkening welding helmets a listing of telecom events for the month of October.

Adjective modifier

• spiked: The corps wore the shako until the introduction of the home service pattern green spiked helmet in 1878.

• protective: As they don their protective helmets, little do they suspect this will be their final battle.

• compulsory: One study suggests that compulsory helmets for pedestrians, drivers and passengers could save 12 times as many lives.

• shiny: John is the one with the shiny purple helmet.

• Anglo-Saxon: Includes details of Anglo-Saxon weapons and armor, including an Anglo-Saxon helmet and other items found in a grave in Northamptonshire.

• mandatory: It concerns the news item about mandatory helmets for children.

Modifies a noun

• compulsion: The scope of research is narrow, the sources highly selective and taken in the main from helmet compulsion activists.

• cam: Lots of helmet cam footage, analysis and riding at speed they made the most out their time here.

• promoter: Just about every helmet promoter quotes either this or the accompanying figure from the same study, 88 % of brain injuries.

Noun used with modifier

• pith: Showing two men in pith helmets seated in the shade of some trees.

• full-face: Donning my full-face helmet, the track crew helped me slide snugly into the purpose-built Formula Brands, powered by a 1.8-litre Audi engine.

• crash: A new crash helmet can cost from £ 40 to £ 500.

• bicycle: How Does a Helmet Work A bicycle helmet reduces the peak energy in a sharp impact.

• cycle: Many Colleges operate a scheme whereby cycle helmets can be bought at cost price or you can claim the cost of a helmet back.

• motorcycle: DW: Current choice between motorcycle helmet or bike helmet?

Possessives

• policeman: Does he keep any mementos from those days, the odd crushed policeman's helmet?

• miner: Plus, given all those miner's helmets I couldn't help but get flashes back to MY BLOODY VALENTINE ( 1981 ).

Preposition: of

• salvation: And take the helmet of salvation, and the sword of the Spirit, which is the word of God.