air a cheann direach
Thuit e air a cheann direach dhan toll

head first
He fell head first into the hole

cha do thog e ceann
Cha do thog mo leabhar ceann a-riamh

it/he never turned up
My book never turned up

às a cheann fhèin
Rinn e sin às a cheann fhèin

of his own volition
He wasn't asked to do that

air a cheann fhèin
Tha e ag obair air a cheann fhèin

for himself (Used when a person is self employed)
He works for himself

leig/chuir mi mo cheann fodham

I had a rest/ I put my head down

ceann-cinnidh

a clan chief

ceann-suidhe

a chairman

leth-cheann

a cheek (i.e. a half-head)

ceann-clò
'Se ceann-clò a th'anns a duine sin

a naive person (i.e. a tweed-head!)

duine fada 'na cheann
An rud a chuireas e 'na cheann cuiridh e 'na chasan e

a stubborn person
What he puts into his head he'll put into his feet! - a good expression to describe a stubborn person.

Here are more phrases based on the word ceann meaning end.

ceann an taighe
Tha a'gharaids aig ceann an taighe

the end of the house
The garage is at the end of the house

ceann na leap'
Tha a' chluasag aig ceann na leap'
an ceann adhairt

the bedhead 
The pillow is at the bedhead
the forward end (i.e. the pillow end)

ceann caol

the narrow end - prow of a boat

o cheann gu ceann
Leugh mi an leabhar o cheann gu ceann

from end to end
I read the book from beginning to end

an ceann seachdain
Thàinig e an ceann seachdain

at the end of the week
He came at the end of the week

ceann an rathaid
Choinnich mi e aig ceann an rathaid

The end of the road
I met him at the end of the road

Cum ceann a'mhaide ris

keep the end of the stick to him
i.e. don't give in to him/stand up to him

Thug e a chasan leis

He ran off (He took his feet with him)

Rug e air làimh orm

He shook hands with me (He caught my hand)

Tha sin agam air mo theangaidh

I know that off b y heart (I have that on my tongue)

Thug e dòrn dhomh

He punched me (He gave me a fist)

Tha tusa le do chab air do ghualainn

You talk too much/You can't keep a secret (Your mouth is on your shoulder)

Cha leaghadh an t-ìm na bheul

Butter wouldn't melt in his mouth

Thug e droch bheul dhomh

He verbally abused me (He gave me a bad mouth)

'Sann ort a tha an aghaidh!

The cheek of you! (What a face is on you!)

Dhùin e an doras air mo shròn

He shut the door in my face (He shut the door on my nose)

Cha robh mi riamh cho math

I've never been better

Chan eil adhbhar a bhith a' gearain

No cause for complaint (There is no reason to complain)

Chan eil ach meadhanach

Only middling /so-so

Tha mi beò air èiginn

I'm barely alive

Chan eil ach bochd

I'm in a poor way

Chan eil ach truagh!

Just terrible!

Chan eil gu ri radh

No complaints (There is nothing to say)

Is math mar a tha

Good

Tha an teas a'cur orm!

The heat is bothering me/getting me down!

Samh.30 Là Naoimh Anndrais

St. Andrew's Day

Dùbh. 6 Latha Bodach na Nollaige

St. Nicholas' Day

Dùbh. 21 Grianstad a'Gheamhraidh

Winter Solstice

Dùbh. An Nollaig (fem.) [na Nollaig/e]

Christmas

Dùbh. 24 Oidhche nam Bannag/Oidhche Nollaige

Christmas Eve

Dùbh. 25 Latha na Nollaige/Oidhche Nollaige

Christmas Day/Christmas Night

Nollaig Chridheil

Merry Christmas

Dùbh. 26 Là Naoimh Steafain

St. Stephen's Day

Dùbh. 28 Là Fèill nan Leanaban Neochiontach

Feast of the Holy Innocents

Dùbh. 31 Oidhche Challainn

Hogmanay/ New Year's Eve

Fao. 1 Là na Bliadhn'Uire

New Year's Day

Bliadhna Mhath Ùr!

Happy New Year