Health
The World
Travelling
Studying
Memories
100

Under the weather

Feeling sick

100

Down to earth

Practical and realistic

100

To hit the road

To start a journey

100

To hit the books

To study hard

100

Treasure every moment

Appreciate time and experiences

200

An apple a day keeps the doctor away

Eating healthy helps you to avoid illness

200

A fish out of water

Feeling out of place, like you don't belong

200

Travel light

To bring only a few things with you

200

Hit the ground running

To start something immediately with energy

200

Once in a blue moon

Something that happens very rarely

300
Fit as a fiddle

Very healthy

300

Lost in translation

Meaning is misunderstood or misinterpreted 

300

The middle of nowhere

A very remote place

300

A picture is worth a thousand words

Pictures can show complex ideas better than words 

300

Brain like a sieve 

Forgets things easily

400

Back on your feet

Recovered from an illness

400

Tip of the iceberg

A small part of a much bigger problem

400

Catch the travel bug

To start loving to travel

400

Think outside of the box

Be creative and original

400

A trip down memory lane

Reflecting on the past

500

Wake-up call

A warning or realisation that makes you take action

500

Can't see the forest for the trees 

To miss the 'big picture' because you're too focused on the small details

500

At a crossroads

At a point where a decision is needed

500

Burning the midnight oil

Working late into the night

500

Water under the bridge

Past events that are no longer important